Why does the man have the talk with the woman
A. To get into a school.
B. To join a sports team.
C. To get a job.
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对芽孢最有效的消毒剂是( )。
A. 苯扎溴铵
B. 福尔马林
C. 生石灰
D. 二氟沙星
E. 乙醇
听下面5段对话或独白。每段对话或独白后有2—4个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。听每段对话或独白前，你将有5秒钟的时间阅读各个小题；听完后，各小题将给出5秒钟的作答时间。每段对话或独白读两遍。 What seems to be the man’s problem
A. Keeping his room clean every day.
B. Getting along with his roommate.
C. Having trouble making friends.
What are the two speakers talking about
A. Buying holiday presents.
B. Making a Christmas plan.
C. Sharing opinions on friendship.
阿托品解救有机磷中毒的机理是( )。
A. 能恢复胆碱酯酶的活力
B. 能对抗有机磷中毒时的M样作用
C. 能对抗有机磷中毒时的N样作用
D. 能对抗有机磷中毒时的中枢神经毒性作用
E. 能直接水解乙酰胆碱
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