— How ____ the people in Yunnan?
— Very friendly. [ ]
A. were
B. was
C. is
D. do
答案:A
药品属于( )行业。
A.周期性
B.反周期性
C.非周期性
D.以上皆错
每日运营结束前两小时OCC调度人员与各车站核对当晚的施工作业计划。