如图所示，气缸内封闭一定质量的理想气体，不计活塞与缸壁间的摩擦力，当外界的大气压缓慢增大时，考虑密闭气体和外界的热传递而使气体的温度保持不变，下列发生改变的物理量有（　　）

A．弹簧的弹力

B．密闭气体的压强

C．密闭气体的体积

D．密闭气体的内能

小题1:据说哈利波特已经出版了。

It is said that Harry Potter has     ▲         ▲    .

小题2:在我等车的时候，我睡着了。

While I was waiting for the bus , I     ▲          ▲    .

小题3:你参观过的地方被用亮紫色作上了记号。

The places you have visited are     ▲         ▲     bright purple .

小题4: 太空山外人们排的队不见尽头。

The line of people outside the Space Mountain was     ▲    .

小题5:过山车高速移动，我们都很害怕。

The roller coaster moved     ▲        ▲ _    ▲   , we were very afraid.

小题6:我们太激动了，以至于很长时间不停地为她鼓掌。

We were     ▲        ▲        ▲    we couldn’t stop clapping our hands for her .

小题7:北京的天气和广东大不一样。

The weather in Beijing was quite     ▲   from     ▲    in Guangdong .