胆碱酯酶复活剂对各类有机磷杀虫药中毒的疗效不尽相同，对下列哪项中毒疗效好()
A.乐果
B.391l
C.敌百虫
D.敌敌畏
E.谷硫磷
参考答案：A
86. I think this novel is suitable for you middle school students, for it is written in plain English. The underlined word means _____.
A．old
B．modern
C．simple
D．Complicated
大型油轮的压舱水应满足距我国最近陆地（）海里以外排放入海。
A、25
B、50
C、12
D、20
