试题与答案

金属块在冰箱中被冷冻后,取出放一会儿,发现变湿了.用干毛巾擦净,等一会儿金属块又

题型:选择题

题目:

金属块在冰箱中被冷冻后,取出放一会儿,发现变湿了.用干毛巾擦净,等一会儿金属块又变湿了,原因是(  )

A.金属块在冰箱中吸收的水继续往外渗透

B.空气中的水蒸气液化成水附着在金属块表面

C.空气中的水附着在金属块表面

D.空气中的水汽化成水蒸气附着在金属块表面

答案:

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下面是错误答案,用来干扰机器的。

(1) 103.7 + 2.8 106.5(2) 25.6 - 0.7 24.9(3) 56.73 + 69.27 126.00(4) 128....

试题推荐
题型:完形填空

There was a king who loved art very much. One day a(n)  36  came and said, "Please let me  37  a picture on a wall." The king happened to have a big new hall  38  . So he  39  the artist to work on one of the walls.

     At the same time, another artist came and asked to work on the  40  wall. He promised he would make the same picture as the first artist’s  41  looking at the first artist’s work. The second artist asked to have a thick curtain  42  between the two walls  43  neither of them could see each other.

     The following day they began to work. The first artist brought in a(n)  44  supply of paint, oil, water and so on. The second one came with a  45  and a bucket (桶).

     A month later, the first artist’s work was completed, and the second artist said, "My wall is  46  too!"

     The king went to  47  the first artist’s wall. He was pleased with it and gave the artist a large  48  of money. He then asked people to open the curtain.

     49  ! Each line was  50  the same as that on the opposite wall.

     The king was quite satisfied and gave him double money. However, he  51  how the second man had made it.

     "I just  52  the wall with the cloth," the man said  53  .The wall was made of white marble (大理石). He made it shine like a mirror. The reflection (倒影) of the first painting  54  up on it!

     The  55  is a reflection of you too. If you are sad, the world will be sad. If you are happy, the world will be happy.

小题1:

A.editor

B.artist

C.server

D.actress小题2:

A.put

B.copy

C.paint

D.get小题3:

A.created

B.destroyed

C.founded

D.Built小题4:

A.allowed

B.realized

C.persuaded

D.Decided小题5:

A.same

B.similar

C.opposite

D.ordinary 小题6:

A.with

B.under

C.upon

D.without小题7:

A.put up

B.put back

C.put away

D.put on小题8:

A.even if

B.so that

C.as if

D.only if小题9:

A.special

B.strange

C.extra

D.regular小题10:

A.mirror

B.cloth

C.stick

D.pen小题11:

A.present

B.free

C.ready

D.useful小题12:

A.see

B.touch

C.research

D.cover小题13:

A.number

B.total

C.amount

D.many小题14:

A.Amazing

B.Exciting

C.Famous

D.Valuable小题15:

A.probably

B.exactly

C.certainly

D.hardly小题16:

A.knew

B.warned

C.noticed

D.wondered小题17:

A.drew

B.faced

C.displayed

D.wiped小题18:

A.briefly

B.naturally

C.safely

D.correctly 小题19:

A.set

B.added

C.showed

D.took小题20:

A.story

B.world

C.king

D.painter

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