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【单选题】
细集料的筛分试验应进行两次平行试验,以平均值最为测定值。如两次试验所得的细度模数之差大于( ),应重新进行试验。A.
0.02
B.
0.01
C.
0.2
D.
0.3
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反馈参考答案：
举一反三
【单选题】The passage suggests that the fact the 'only one community cancer cluster had ever been traced to an environmental cause' (Para. 3)is most likely due to the
A.
methodological difficulties in analyzing community cancer clusters
B.
reluctance of epidemiologists to investigate environmental factors in cancer
C.
lack of credibility of citizen activists in claiming to have identified cancer agents
D.
effectiveness of regulations restricting the use of carcinogens in residential areas
【单选题】_________ the fact that many drivers are ever trained, we cannot stress too much theimportance of traffic safety.
A.
Thanks to
B.
Despite
C.
As
D.
Although
【单选题】按《联合国国际货物销售公约》规定卖方交货数量如超过合同规定数量时,( )。
A.
买方有权拒收超过部分货物
B.
买方有权拒收全部货物
C.
买方无权收取全部货物
D.
买方无权收取超过部分货物
【简答题】按《公约》规定卖方交货数量如超过合同规定数量时,( )
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