问题 单项选择题

化工生产过程中最常见溶液对金属的腐蚀过程是一个()腐蚀过程。

A.化学反应和电化学

B.化学反应和物理反应

C.电化学和物理反应

D.化学反应和活化

答案

参考答案:A

阅读理解

A Policeman and a Thief  

One day a policeman was taking a thief to the city . On the way , they saw a shop . The thief said . “ Let me go into the shop to buy some bread . We can eat it in the train . ”

The policeman agreed . The thief went into the shop and ran out of the back door . When the policeman knew that , he began to look for the thief everywhere . At last the policeman caught(抓获) thief again . They went on to the city . On the way they came to the same shop . The thief wanted to buy some bread again . “Oh , no . ” said the policeman , “You did that before , and you ran away . This time Ill go into the shop and buy bread . You must wait here for me . ”

小题1:What was the policeman doing one day ?

A.Catching a thief with others .

B.Doing nothing.

C.Taking a thief to the city .

D.Walking go the city by himself .小题2:On the way the thief asked to         .

A.buy some food to eat .

B.let him free .

C.take a rest .

D.walk slowly .小题3:When the thief went into the shop , he ran out of        .

A.the back door .

B.the back window .

C.the front door .

D.the front window .小题4:When the thief ran away the first time , what did the policeman do ?

A.The policeman caught the thief again .

B.The policeman looked for the thief . but he didn,t find him .

C.The thief was caught again by other policemen .

D.The policeman went back without(没有) the thief .小题5: From the last three sentences, we know that the policeman was very        .     

A.brave

B.careful

C.clever

D.foolish

问答题 简答题