----- I don’t know about you, but I’m sick and tired of this weather.

----- _____.I can’t stand all this rain.

A．So am I

B．It’s hard to say

C．I hope so

D．I don’t care

用水平仪测量时，只有在环境温度较高并使汽泡变长时，才有必要采用平均读数法。