如图，小鱼口中吐出的气泡在升至水面的过程中，体积会逐渐变大，

搜题请搜索小程序“爱下问搜题”

问题选择题

如图，小鱼口中吐出的气泡在升至水面的过程中，体积会逐渐变大，则气泡受到的浮力和气泡内气体压强的变化情况是

[ ]

A．浮力不变，压强不变

B．浮力变小，压强变小

C．浮力变大，压强变大

D．浮力变大，压强变小　

答案

答案：D

填空题

阅读短文，然后用括号中所给词的适当形式填空。

In Seoul, there is a technology museum, it gives people some 1 (idea) about what our life will

be like in the future.

The museum has 2 (second) parts, "Dream" and "Play". The former (前者) is about how

technology will be used in everyday life in the near future, and the latter(后者) shows the recent

technologies being used today.

In the museum, we can see 3 (clear ) that our life in the future will be fantastic. The walls in our

house will be one big screen. Nowadays, it 4 (take) a lot of time to change the wallpaper of our

house. In the future, all it will take is moving our arms. 5 (Our) only need to sweep the wall and

the "wallpaper" will change to a 6 ( difference ) picture immediately.

选择题