班计划是车站完成一个班的运输生产任务的作业组织计划,由()编制。
A.车站调度员
B.车站值班员
C.主管副站长
D.值班站长
参考答案:C
常用作阴性对比剂的是()
A.氨气
B.氮气
C.氧气
D.氢气
E.氯气
He could_____ neither French or German, so I____ with him in English.
A, speak, talked B. talk, told C. say, spoke D. tell, talked