.Some people think that as more and more people have televisions in their homes，　　　　people will buy books and newspapers.

A．more and more

B．any the less

C．more or less

D．fewer and fewer

在测量工作中，绝大部分仪器的整置均以水准气泡为依据，所以( )是测量中的工作面。

A．水准面

B．水平面

C．铅垂面

D．自然地面