某县2003年年初已有脑卒中300例，当年共发生脑卒中100例，脑卒中死亡20例。以

阅读理解。

    Mr. Black was a policeman. He was a kind person. He liked to have a walk in the park after breakfast.

    It was very cold on a winter morning. Mr. Black was walking along the street when he heard a cry for

help. He turned around but could see nobody. He stopped and looked here and there. At the moment, a

boy ran up to him. The boy was in such a hurry and he couldn't say a word except pointing towards the

river. Mr. Black ran to the river as soon as possible. Both of them ran along the river and saw a girl in the water. She was holding a piece of wood. It was carrying her away. It was too dangerous.

    Without a word, Mr. Black took off his clothes as quickly as he could, and jumped into the river. He

swam to the girl and took her back near the bank and lifted the girl up, and then the boy helped pull her

out of the water. Then they stopped a car and took the girl to the hospital. At last the girl's life was saved, and she thanked them very much.

1. What do you think of Mr. Black?

A.Mr. Black is a kind man.  

B.Mr. Black is a good policeman.

C.Mr. Black liked to have a walk.

2. When did Mr. Black find the girl?

A.As soon as he heard the cry for help.

B.When the boy ran to him.

C.When they ran along the river.

3. Why didn’t the boy say a word?

A.He was too worried.

B.He was too excited

C.He was too sad

4. How was Mr. Black when he came back to the bank.

A.His clothes were all wet.

B.He felt very cold.

C.He was angry.

5. According to the passage, which is right?

A.The girl thanked Mr. Black and the boy.

B.The boy was the girl’s brother.

C.Only the boy sent the girl to the hospital.

某公司期末一项持有至到期投资成本明细科目的期末余额为500万元，利息调整的期末余额为100万元（借方），持有至到期投资减值准备的金额为20万元，则期末报表列示金额为（）万元。

A.500

B.520

C.600

D.580

根据语境，选择恰当的成语填空。

备选成语：卧薪尝胆 守株待兔 精卫填海 锲而不舍 悬梁刺股 艰苦卓绝 直言不讳 坚持不懈

       执著的故事——不老——愚公移山，夸父逐日，                    ；执著的人物——不朽——闻鸡起舞的祖逖，_________的勾践，面壁静修的达摩。执著是_________，是_________，是一支永无休止符的进行曲。

He fell off the bike ________.

A．while he rode

B．while he was riding

C．while he is riding

D．while on bike

涂料的生产工艺过程是怎样的？