试题与答案

全团要求看计划外演出,地陪按照综合报价(票费,车费,服务费)收取费用。

题型:判断题

题目:

全团要求看计划外演出,地陪按照综合报价(票费,车费,服务费)收取费用。

答案:

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     Today is my birthday (生日). I want to thank my family for their love. So I cook(烹饪) the

dinner for them. I know my father likes hamburgers and broccoli. But my mother likes chicken and

tomato soup. I have a brother. He likes hamburgers, too. But he doesn't like broccoli. He likes carrots.

I have a sister, too. She likes fish and French fries. I like chicken and strawberries. I will buy these

things for the birthday party (金).

1.  My father likes hamburger and _____ .

2.  My mother likes _____ and_____ soup.

3.  My _____ likes hamburgers and _____ .

4.  My sister likes _____ and _____

5.  I like _____ and_____.

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题型:问答题

如图所示的水平地面,ab段粗糙,bc段光滑.可视为质点的物体A和B紧靠在一起,静止于b 处,已知A的质量为3m,B的质量为m.两物体在足够大的内力作用下突然沿水平方向左右分离,获得的总动能为E.B碰到c处的墙壁后等速率反弹,并追上已停在ab段的A.A、B与ab段的动摩擦因数均为μ,重力加速度为g.求:

(1)分离瞬间A、B的速度大小;

(2)A从分离到第一次停止的时间;

(3)B第一次追上A时的速度大小.

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