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【判断题】
导游员必须至少提前半小时到达出发地点。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】,当钢加热到超过200°C时,残余奥氏体转变为下贝氏体或回火马氏体,这一过程是( )。
A.
渗碳体的聚集长大
B.
残余奥氏体分解
C.
渗碳体的形成
D.
马氏体分解 ,
【单选题】I think the poor health will be of your study. [ ]
A.
on the way
B.
by the way
C.
in the way
D.
at the way
【单选题】I think the rate of the dollar ___ the Chinese Yuan has risen again,hasn’t it?
A.
against
B.
at
C.
with
D.
to
【单选题】听力原文：Do you think Alex is ready for the promotion? (A) I think the title was Associate Director of Marketing. (B) Definitely, he already takes on most of the duties. (C) I'm ready for more responsibil...
A.
B.
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