搜题请搜索小程序“爱下问搜题”
问题 填空题
某花园中有一小水池，小水池中有一朵莲花，它每天都长大一倍，27天后把整个小水池注满，那么这朵莲花在第______天后能遮住小水池的
1
8
．
答案

∵某花园中有一小水池，小水池中有一朵莲花，它每天都长大一倍，27天后把整个小水池注满，

∴26天后能遮住小水池的

1
2
，25天后能遮住小水池的
1
4
，

∴24天后能遮住小水池的

1
8
．

故答案为24．

完形填空

Manners are important in England. Here is some a 小题1:  if you are going to England.

British people usually say “hello” or “nice to meet you”. When you are first i 小题2:  to someone, shake their right hand with your own right hand. They only greet relatives or close friends w 小题3:  a kiss. They like to start a conversation with subjects like the weather，holidays, music or books．They avoid (避免) talking about age, weight or money. It is considered i 小题4:  to ask a lady her age.

British people think it is rude to push in before o 小题5: . They always wait patiently for their turn. They say “sorry” if they bump (撞) into you in the street. When they want you to move they say “excuse me”. They do not like to shout or laugh l 小题6: in public. Do open doors for other people. Men and women both hold the door open for each other. It depends on (取决于) w 小题7:  goes through the door first. They say “please” or “thank you” all the time.

When sitting at the table, do not start eating u 小题8:  everyone is ready, and it is impolite to make too much noise while eating or drinking. Do not eat with your mouth o 小题9:  or talk with food in your mouth. Also do not reach over someone’s plate for something. Before leaving, wait for everyone to f 小题10: .

“When in Rome, do as the Romans do.” When we are in a strange place，we should do as the local people do.
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单项选择题

图2-13为一山洪的洪水水位标高及排洪渠道的宽度简图（是20～50年重现期的），适用于以下哪种城市规模（）

A.城市人口≥150万人的特别重要城市 

B.城市人口为50万～150万人的重要城市 

C.城市人口为20万～50万人的中等城市 

D.城市人口为≤20万人的小城市
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