运行中的六氟化硫断路器灭弧室气室的微水量（20℃）不得大于（）微升／升。
A.150
B.300
C.250
D.500
参考答案：B
— The “No.1 Document” is designed to help the rural population increase their incomes.
— I believe that peasants’ life _____ better and better.
A．will have got
B．will be getting
C．gets
D．has got
运输收入稽查人员可以在车站、列车查验旅客各种乘车凭证。（部竞赛题）
