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问题 填空题

星期天爸爸开车带着小明去开封游玩，当汽车开到郑开大道起点时，小明看到路旁的标志牌如图所示，汽车上的速度计示数如图所示，小明提醒爸爸应采取______措施．在遵守交通规则的情况下，他们到达开封最快需要______min．

答案

（1）由速度计得出汽车的行驶速度v=90km/h，标志牌上的数字“80”表示的意思行驶速度不能超过80km/h，所以汽车超速行驶，小明提醒爸爸应采取减速措施；

（2）v最大=80km/h，从此标志牌处匀速到达开封，最快需要：

t=

S
v最大
=
72km
80km/h
=0.9h=54min．

故答案为：减速；54．

阅读理解

Here is a story told about an American general who was a very important figure in the American army during the First World War. Everybody in the United States knew him and many people wished to have a picture or something of his in their homes.

Soon after the war the general returned to Washington. One day he went to a dentist and had six teeth pulled out. A week later the general heard that his teeth were being sold in curiosity shops as $ 5 each. On each of the teeth there was a label with the name of the general and words: “Buy these teeth and show them to your friends at home.” The general got angry. He rushed to his office and ordered six officers to go around the city and buy all his teeth.

The officers went out and visited every curiosity shop in the capital. They were away from the office all day. In the evening they returned and put on the table in front of the general the teeth they had bought. They had collected 175 teeth.

小题1:The general returned to Washington ______.

A．during the war

B．after civil war

C．after 1945

D．after 1918小题2:The general’s teeth were sold in ______.

A．the museum

B．the special shops selling some rare and interesting things

C．the department store

D．the hospital小题3:The general ordered his men to ______.

A．look for his teeth and buy all of them

B．arrest the dentist at once

C．make all the shops stop selling teeth

D．buy all the teeth in all the shops小题4:In the evening, the officers went back with all the teeth which cost ______.

A．$ 785

B．$ 1,050

C．$ 157

D．$ 875
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单项选择题

招标人以招标公告的方式邀请不特定的法人或者组织来投标，这种招标方式称为( )。

A．公开招标
B．邀请招标
C．议标
D．定向招标
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