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【简答题】
有关青霉素快速过 敏试验法，错误的是（ ）
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举一反三
【单选题】What does the author say about the effect of nicotine on smokers?
A.
It threatens their health.
B.
It heightens their spirits.
C.
It suppresses their appetite.
D.
It slows down their metabolism.
【单选题】What does “effect” mean?
A.
Why things happen
B.
What happens as a result
C.
How things happen
【简答题】What does the author say about the effect of nicotine on smokers? A) it threatens their health B) it heightens their spirits C) it suppresses their appetite D) it slows down their metabolism
【简答题】What effect does excessive positive ions have on some people?
【单选题】以公司债债权能否转化为股权为标准,公司债可分为
A.
记名债券和无记名债券
B.
有担保公司债和无担保公司债
C.
可转换公司债和非转换公司债
D.
公募公司债和私募公司债
【单选题】What effect does dry air have on a tropical cyclone? 查看材料
A.
Strengthening the power.
B.
Reducing its power，
C.
Having no effect at all.
D.
Transforming it into other things.
【简答题】CSS的七种选择器包括:( )、( )、( )、( )、( )、( )、( )。
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