阅读下面短文，掌握其大意，然后从每小题所给的A、B、C、D四个选项中，选出一个最佳选项。

    School education is very important and useful. Yet no one can  1  everything at school and a teacher can't teach his students everything they want to know. His 2  is to show his students how to learn. He teaches them how to read 3 how to think. So much more is to be learnt outside school by the students 4.

     It is always more  5 to know how to study by oneself. It is quite  6  to learn something, but it is difficult to use it to solve problems. Great inventors (发明家) don't get everything  7  school, but they still can 8 many things and change the world a lot.

     How can the inventors do all of these? One of the answers is: they   9  how to study. A lot of things are not learnt in the classroom. They get a lot of knowledge by reading outside school. They work hard and never  10  their dreams.

在做“电流通过导体时产生的热量与什么因素有关”的实验时，采用了如图所示的实验装置．两个透明的容器中密闭了等量的空气，u型管中液面的变化反映了密闭空气温度的变化，下列说法正确的有（　　）

下列各句中，划线的词语使用恰当的一句是（  ）