在人防工程内严禁储存（）物资。
A.食品、饮用水
B.化工剧毒产品
C.机械设备
参考答案：B
35. He lost his job three months ago; ______, he was seriously injured in an accident last week.
A．in the first place
B．to make matters worse
C．on the contrary
D．in other words
常见的戒毒方法有自然戒断法、药物戒断法、（）三种。
A、强制戒断法
B、间接戒断法
C、非药物戒断法
D、替代戒断
