绝缘油含气量检测(气相色谱法)中,使用机械振荡脱气法时,抽取()高纯氩气注入油样中。
A.5ml
B.10ml
C.15ml
D.20ml
参考答案:B
Don’t worry. All the children will_____ arrive at school on time tomorrow.
A.are able to
B.can
C.be able to
D.can be able to
道路旅客运输合同的主要表现形式是()。
A.客运班次时刻表
B.车票
C.行包托运单
D.行车路单