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问题 探究题

物理实验中，对于一些不易直接测量的物理量，通常利用相关的物理效应间接比较其大小.

（1）图1所示是“探究物体动能的大小与什么因素有关”的实验，该实验中“物体动能的大小”是通过 __________ 来反映的；

（2）图2所示是“比较不同燃料热值”的实验，该实验中“燃料燃烧放出热量的多少”是根据 __________ 来比较的；

（3）图3所示是“研究电流做功多少与电压关系”的实验，该实验中“电流做功的多少”是根据 __________ 来比较的.

答案

（1）木块被推的距离

（2）水升高的温度

（3）小灯泡的亮度

多项选择题

从关联交易属于中性交易的角度讲，关联交易有利于（）。

A.降低企业的交易成本

B.促进生产经营渠道的畅通

C.实现利润的最大化

D.管理层对上市公司的监管
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完形填空

Do you know something about the holiday camps in Hong Kong? The students in Hong Kong used to take part in an English h  1  camp in their holidays. And their parents don’t go with them   2 (虽然) they are very young.

Now they still enjoy t  3 part in many kinds of holiday camps without their parents. Many parents let their children take part in some kinds of holiday camps to make them l 4  some practical(实际的) knowledge in life. The most i 5 (重要的) thing for children to do is to learn to look after themselves. And to do so can make them have more   6  (勇气) to face life in future.

Holiday camps in Hong Kong are not e  7 . Most families can a  8 to send their children there. And the government never p  9 for them.

It’s said that students in Hong Kong have much k  10  about many things. Perhaps it has something to do with the kinds of holiday camps.
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