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【单选题】
数控机床故障率急剧下降的是()阶段。A.
早期故障期
B.
磨合期
C.
偶发故障期
D.
耗损故障期
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【简答题】功似龙骨而长于软坚散结的药物是（ ）
【单选题】What does Len say about the shirt?
A.
It's a new model.
B.
It's on sale.
C.
That's not expensive.
D.
I like it and it's my size.
E.
It's perfect.
F.
It looks good.
【简答题】Alkanes undergo reactions such as cracking, alkylation, oxidation, halogenation, nitration and so on.
【简答题】特异质反应(idiosyncratic reac-tion)
【多选题】What does commission mean?
A.
It's a reward given to an agent.
B.
It's based on the percentage of the sale.
C.
It's in proportion to the price at which the goods are bought or sold.
D.
It is paid to a salesperson for every sale that he or she makes.
【单选题】某中学上课时，高年级学生李某到教室外喊赵某，说有事让其出去一趟，班主任张某默许了，赵某走出教室后遭到李某殴打，导致右眼失明，对赵某所受伤害应当承担赔偿责任的主体是（）
A.
李某
B.
张某
C.
学校
D.
李某和学校
【简答题】Alkanes undergo reactions such as cracking, alkylation, oxidation, halogenation, nitration and so on.
【简答题】A．experience B．witness C．watch D．undergo
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