[单选题]

过点（2，0）且与直线相切的直线方程为（   ）

A

B

C

D

y-1=2(x-1)

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[单选题]

设的导数是,则的一个原函数是（     ）

A

1+sinx

B

1-sinx

C

1+cosx

D

1-cosx

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[单选题]

若函数在上连续，在（a,b）内可导，则下列说法错误的是（     ）

A

在上必有最大值和最小值

B

在上一定有界

C

在（a,b）内必存在一点,使得=0.

D

在（a,b）内必存在一点,使得=.

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[单选题]

函数的拐点为（       ）

A

-1

B

1

C

（-1，-6）

D

（1，-4）

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[判断题] 在杨氏双缝干涉实验中，用一块透明的薄云母片盖住双缝，则屏幕上的干涉条纹将向不移动

正确 、正确。

错误 、错误。

查看答案

[判断题] 若一平面载流线圈在磁场中既不受力，也不受力矩作用，这说明该磁场一定不均匀, 且线圈的磁矩方向一定与磁场方向平行@@该磁场一定均匀, 且线圈的磁矩方向一定与磁场方向垂直

正确 、正确。

错误 、错误。

查看答案

[判断题]

接证实了电子的波动性最早的实验之一是斯特恩－革拉赫实验

正确 、正确。

错误 、错误。

查看答案

[判断题] 波长为λ的单色光垂直入射在缝宽a=4λ的单缝上。对应于衍射角=30°，单缝处的波面可划分为4个半波带

正确 、正确。

错误 、错误。

查看答案

[判断题] 用线圈的自感系数来表示载流线圈磁场能量的公式只适用于一个匝数很多, 且密绕的螺线环

正确 、正确。

错误 、错误。

查看答案

[判断题]

接证实了电子的波动性最早的实验之一是卢瑟福散射实验

正确 、正确。

错误 、错误。

查看答案

[判断题] 尺寸相同的铁环与铜环所包围的面积中, 通以相同变化率的磁通量, 环中感应电动势相同

正确 、正确。

错误 、错误。

查看答案

[判断题] 电动势的大小反映电源内部静电力做功的本领

正确 、正确。

错误 、错误。

查看答案

[判断题] 波长为λ的单色光垂直入射在缝宽a=4λ的单缝上。对应于衍射角=30°，单缝处的波面可划分为2个半波带

正确 、正确。

错误 、错误。

查看答案

[判断题] 波长为λ的单色光垂直入射在缝宽a=4λ的单缝上。单缝处的波面可划分为4个半波带,对应于衍射角60°

正确 、正确。

错误 、错误。

查看答案

[判断题]

直接证实了电子具有粒子性最早的实验之一是斯特恩－革拉赫实验

正确 、正确。

错误 、错误。

查看答案

[判断题] 波长为λ的单色光垂直入射在缝宽a=4λ的单缝上。对应于衍射角=30°，单缝处的波面可划分为6个半波带

正确 、正确。

错误 、错误。

查看答案

[判断题] 尺寸相同的铁环与铜环所包围的面积中, 通以相同变化率的磁通量, 环中感应电流相同

正确 、正确。

错误 、错误。

查看答案

[判断题] 在杨氏双缝干涉实验中，用一块透明的薄云母片盖住下面的一条缝，则屏幕上的干涉条纹将向下方移动

正确 、正确。

错误 、错误。

查看答案

[判断题] 波长为λ的单色光垂直入射在缝宽a=2λ的单缝上。单缝处的波面可划分为4个半波带,对应于衍射角30°

正确 、正确。

错误 、错误。

查看答案

[判断题] 在杨氏双缝干涉实验中，光源作平行于缝S1，S2联线方向向上移动，则屏幕上的干涉条纹将向上方移动。

正确 、正确。

错误 、错误。

查看答案

[判断题] 闭合回路上各点磁感应强度都为零时, 回路内一定没有电流穿过

正确 、正确。

错误 、错误。

查看答案

[判断题] 在夫琅禾费单缝衍射实验中，当缝宽变窄，则衍射条纹变宽

正确 、正确。

错误 、错误。

查看答案

[判断题] 位移电流的磁效应服从安培环路定理

正确 、正确。

错误 、错误。

查看答案

[判断题] 一圆形线圈在均匀磁场中沿垂直磁场方向平移会产生感应电流

正确 、正确。

错误 、错误。

查看答案

[多选题]

量子力学中，测不准关系说明（  ）和（   )不能同时准确测量

A

时间

B

动量

C

能量

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[多选题] 波尔的氢原子理论，提出的三条基本假设包括（ ）

A 定态假设。

B 量子化假设。

C 轨道角动量量子化假设。

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[多选题] 磁场的能量与（ ）有关

A 磁感应强度。

B 磁通量。

C 磁介质。

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[多选题]

波尔的氢原子理论中，基态的能量与（    ）有关

A

电子质量

B

电子电量

C

电子直径

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[多选题] 迈克尔逊干涉实验可以演示（ ）实验

A 等傾干涉。

B 等厚干涉。

C 双缝干涉。

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[多选题] 作为增透膜介质，其介质的折射率不可能取（ ）

A 1,2.。

B 1.6。

C 1.8。

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[多选题] 牛顿环干涉实验中，当相位差满足（ )条件时能产生干涉减弱

A π。

B 2π。

C π/2。

D π3/2。

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[多选题] 条形磁铁分为（ ）级和（ ）级

A N。

B E。

C S。

D W。

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[多选题] 由马吕斯定理可知，当入射偏振光的光矢量的振动方向与检偏器的偏振化方向的夹角为（ )可使透射光的光强最小

A 0。

B π/2。

C π。

D 3π/2。

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[多选题] 在双缝干涉实验中，为使屏上的干涉条纹间距变小，可以采取的办法是（ ）

A 使屏靠近双缝。

B 使两缝的间距变小。

C 把两个缝的宽度稍微调窄。

D 改用波长较大的单色光源。

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[单选题] 一圆形线圈在均匀磁场中作下列运动时, 哪些情况会产生感应电流( )

A 沿垂直磁场方向平移。

B 以直径为轴转动, 轴跟磁场垂直。

C 沿平行磁场方向平移。

D 以直径为轴转动, 轴跟磁场平行。

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[单选题] 某种单色光垂直入射到每厘米有8000条刻线的光栅上，如果第一级谱线的衍射角为30°那么入射光的波长是( )

A 600nm。

B 625nm。

C 650nm。

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[单选题] 对于涡旋电场, 下列说法不正确的是( )

A 涡旋电场对电荷有作用力。

B 涡旋电场由变化的磁场产生。

C 涡旋电场由电荷激发。

D 涡旋电场的电场线是闭合的。

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[单选题] 螺绕环内部产生的磁场为（ ）

A 非匀强磁场。

B 匀强磁场。

C 无法判断。

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[单选题] 在双缝干涉实验中，用单色自然光，在屏上形成干涉条纹．若在两缝后放一个偏振片，则( )

A 干涉条纹的间距不变。

B 干涉条纹的间距变窄。

C 干涉条纹的间距变宽。

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[单选题] 产生动生电动势的非静电力是（ ）

A 洛伦兹力。

B 感生电场力。

C 变化的磁场。

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[单选题]

康普顿效应说明光具有（    ）

A

波动性

B

粒子性

C

电磁性

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[单选题]

根据量子论，氢原子核外电子的状态可由四个量子数来确定，若n=2.则最多能容纳多少个电子

A

0

B

2

C

8

D

18

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[单选题] 投射到起偏器的自然光强度为I，开始时，起偏器和检偏器的透光轴方向平行．然后使检偏器绕入射光的传播方向转过45°则透过检偏器后光的强度是I的( )倍

A 3/8。

B 1/4。

C 1/8。

D 1/2。

查看答案

[单选题]

直接证实了电子具有粒子性最早的实验之一是（    ）

A

康普顿散射实验

B

卢瑟福散射实验

C

戴维孙－革末实验

D

斯特恩－革拉赫实验

查看答案

[单选题] 在夫琅禾费单缝衍射实验中，当入射波长变短时，则衍射条纹变（ ）

A 变宽。

B 变窄。

C 无法判断。

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[单选题] 设光栅平面、透镜均与屏幕平行。则当入射的平行单色光从垂直于光栅平面入射变为斜入射时，能观察到的光谱线的最高级次k（ ）

A 变小。

B 变大。

C 不变。

D 无法确定。

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[单选题]

根据量子论，氢原子核外电子的状态可由四个量子数来确定，其中角量子数l为0，则Ml可以取（      ）

A

0

B

1

C

-1

D

2

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[单选题]

根据量子论，氢原子核外电子的状态可由四个量子数来确定，其中n为（    ）

A

主量子数

B

角量子数

C

磁量子数

D

自旋量子数

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[单选题]

康普顿效应说明在光和微观粒子的相互作用过程中，以下定律严格适用（   ）

A

动量守恒、动能守恒

B

牛顿定律、动能守恒

C

动能守恒、机械能守恒

D

动量守恒、能量守恒

查看答案

[单选题] 运动电荷与运动电荷的相互作用靠（ )完成

A 电场。

B 磁场。

C 万有引力。

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[单选题] 波长为λ的单色光垂直入射在缝宽a=2λ的单缝上。对应于衍射角=30°，单缝处的波面可划分为（ ）个半波带

A 1。

B 2。

C 3。

D 4。

查看答案

[单选题] 自然光以布儒斯特角由空气入射到一玻璃表面上，反射光是( )

A 在入射面内振动的完全线偏振光。

B 平行于入射面的振动占优势的部分偏振光。

C 垂直于入射面振动的完全线偏振光。

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[单选题]

X光经物质散射后，散射光中含有波长不变和波长（    ）的两种成分

A

变长

B

变短

C

不确定

查看答案

[单选题] 在杨氏双缝干涉实验中，用一块透明的薄云母片盖住双缝，则屏幕上的干涉条纹将向（ ）方移动

A 向上。

B 向下。

C 无法判断。

D 不动。

查看答案

[单选题]

You _____business interfering with my affairs.

A

have none

B

have no

C

have none of the

D

have nothing like

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[单选题]

The elbows on your coat have worn thin, so I must _____them.

A

mend

B

patch

C

repair

D

pitch

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[单选题]

The fox fell into the _____the hunter had set for it.

A

bush

B

trap

C

trick

D

circle

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[单选题]

The thieves _____the waste paper all over the room while they were searching for the diamond ring.

A

spread

B

scratched

C

scattered

D

burned

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[单选题]

Advertising media like direct mail, radio, television and newspapers _____to increase the sales of industrial products.

A

have been used

B

will be used

C

is being used

D

has been used

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[单选题]

It turned out that the children were not _____for the accident.

A

to blame

B

to be blamed

C

to be blaming

D

to have been blaming

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[单选题]

Of course, talking about something which affects them personally is _____motivating for students.

A

chiefly

B

correctly

C

currently    

D

eminently

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[单选题]

I don’t know you want to keep the letter, I’ve _____it up.

A

torn

B

given

C

broken

D

disposed

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[单选题]

A large part of a person’s memory is _____words and combination of words.

A

by means of

B

in terms of

C

in connection with

D

by way of

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[单选题]

Once our chickens started laying eggs, we had such a _____of eggs that we were giving many away to our neighbors.

A

output

B

surplus

C

production

D

plenty

查看答案

[单选题]

_____, she led a life of complete seclusion.

A

Being disgraced

B

Disgraced

C

Disgracing

D

She was disgraced

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[单选题]

She put an extra blanket over the baby for fear that _____.

A

he catches cold

B

he should catch cold

C

he caught cold

D

he be catching cold

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[单选题]

My cousin Nancy is often in a poisonous mood; I suppose it’s because she is _____child.

A

one

B

a lone

C

a single

D

an only

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[单选题]

The _____problem of bringing a spaceship back from the moon has been solved.

A

technical

B

technological

C

technique  

D

technology

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[单选题]

When Ann broke the dish she tried to put the _____back together.

A

fragments

B

pieces

C

bits

D

slices

查看答案

[单选题]

On no account _____ever leave the baby at home alone.

A

should you

B

you should

C

shall you

D

you shall

查看答案

[单选题]

I was awfully tired when I got home from work, but a half hour nap _____me.

A

revived

B

released

C

relieved

D

recovered

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[单选题]

The desegregation was achieved through a number of struggles, _____been mentioned in previous chapters.

A

a few of which

B

a few of them

C

a few of those

D

a few of that

查看答案

[单选题]

To make this _____clear we shall have to look closely into biology’s long history.

A

distinction

B

indication

C

recognition

D

constitution

查看答案

[单选题]

Information and opinion gap exercises have to have some content _____talking about.

A

worthwhile

B

worthily

C

worth

D

worthy

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[单选题]

I’d rather you _____by train because the weather forecast said there would be heavy snow tomorrow.

A

went

B

should go

C

will go

D

go

查看答案

[单选题]

_____the stress of examinations are over, we call all relax.

A

while

B

Even though

C

Now that  

D

For

查看答案

[单选题]

_____ drills that have no real topic have to remain as they are.

A

Manufacture

B

Manipulative

C

Manipulate

D

Manifest

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[单选题]

The audience waited in _____silence while their aged speaker searched among his note for the figures he could not remember.

A

respective

B

respect

C

respectful

D

respectable

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[单选题]

They have considered their high standard of living a(n) _____for practicing their basic beliefs.

A

award

B

reward

C

result

D

consequences

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[单选题]

The human race has already paid a heavy price for its slow _____to environmental threats.

A

response

B

responsibility

C

resolution

D

resistance

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[单选题]

The old lady _____and fell from the top of the stairs to the bottom.

A

slided  

B

slipped  

C

split  

D

spilled

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[单选题]

If you want children to work hard you must  _____their interests instead of their sense of duty.

A

appeal to

B

look into

C

give rise to

D

go in for

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[单选题]

After so many weeks without rain, the ground quickly _____the little rain that fell last night.

A

skipped

B

soaked

C

retrieved

D

absorbed

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[单选题]

Our boss, Mr. Thompson, _____a raise in salary for ages but noting has happened yet.

A

was promising

B

has been promising  

C

promised

D

has promised

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[单选题]

One day we all may find it useful to have a(n) _____for sending documents, writing any pictures across the telephone lines.

A

receiver

B

echo

C

extension

D

facility

查看答案

[单选题]

Their happiness was very _____.

A

crisp

B

brittle

C

delicate

D

fragile

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[单选题]

We’ll _____you as soon as we have any further information.

A

notify

B

signify  

C

communicates

D

impart

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[单选题]

My grandfather accidentally _____ fire to the house.

A

put

B

took

C

set

D

got

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[单选题]

Modern appliances _____us from a good deal of household work. For instance, the dryer frees us from hanging the laundry.

A

escape

B

benefit

C

liberate

D

comfort

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[单选题]

Einstein won the Nobel Prize in 1921 and enjoyed great fame in Germany until the rise of Nazism _____he was expelled from Germany because he was a Jew.

A

when  

B

who  

C

then  

D

for him to

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[单选题]

Nowhere in nature is aluminum found free, owing to its always _____with other elements, most commonly with oxygen.

A

being combined

B

having combined

C

to combine

D

combined

查看答案

[单选题]

When he was asked about the missing briefcase, the man _____ever seeing it.

A

refused

B

denied

C

opposed

D

resisted

查看答案

[单选题]

It _____to see so many children in that mountainous area cannot even afford elementary education.

A

pains her

B

makes her pain

C

is paining

D

is pained

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[单选题]

Basically a robot is a machine which moves, manipulates, joins or processes _____in the same way as human hand or arm.

A

characters

B

components

C

catalogues    

D

collections

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[单选题]

By the end of next month we _____this assignment.

A

will finish

B

will be finishing

C

will have finished

D

have finished

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[单选题]

Mary will not be able to come to the birthday party as she is _____with a cold.

A

laid out  

B

laid up  

C

laid by  

D

laid down

查看答案

[单选题]

He did me a _____turn by lending me ten pounds.

A

good

B

nice

C

fine

D

pretty

查看答案

[单选题]

The disappearance of her paper has never been _____.

A

counted for

B

looked up

C

accounted for

D

checked up

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[单选题]

At her word she stood up and walked away, stopping at the window to pull back the curtain and _____.

A

look round

B

look out

C

look up

D

look on

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[单选题]

This book has been in the works so long that I have lost _____of most of the sources found for me by the staff of the library.

A

trace

B

trail

C

track

D

touch

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