遇到路面狭窄、不平和重车时，应缓慢行驶，车速每小时不应超过（_爱下问搜题

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问题单项选择题

遇到路面狭窄、不平和重车时，应缓慢行驶，车速每小时不应超过（）。

A.5km

B.10km

C.15km

D.20km

答案

参考答案：A

填空题

充填法开采是指用充填材料全部或（）采空区的岩层控制方法。

补全对话，情景问答

补全对话。
A: Hi, Lucy! __1__
B: Well, I live near my school, so I get up at a quarter to seven. Never go to school late.
A: Do you have breakfast at home?
B: Yes, __2__
A: When do you go to school?
B: __3__ so I go to school at seven forty-five.
A: __4__
B: I leave school at five past five and __5__

A: Class begins at eight o'clock,
B: I get home at five-thirty.
C: When do you get home?
D: What time do you usually get up on weekdays?
E: I usually have some cakes and a glass of milk.