为保证机组达到完好的备用状态,()启动一次运行机组的辅助润滑油泵。
A.每天
B.每周
C.每月
D.每季
参考答案:B
Questions 6~10
When the new anti-smoking law took effect, ______.
A. people could make complaints about secondhand smoke in homesB. smoking in most public places and family homes was bannedC. the first violation could be punished with a fine of the monthly minimum wageD. most anti-smoking advocates dismissed the new law as infeasible
先天性梅毒的眼部表现不包括()
A.基质性角膜炎
B.角膜新生血管
C.虹膜睫状体炎
D.视力下降
E.视网膜脱离