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【多选题】
公元751年,在中亚发生了唐与阿拉伯帝国的战争,这次战争导致A.
印刷术的
B.
造纸术的
C.
炼丹术的
D.
指南针的
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参考解析：
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皮皮学刷刷变学霸
举一反三
【单选题】研究者测定了正常人、单纯性肥胖和皮质醇增多症三组人(n均为12)的血浆总皮质醇,已知三组总体方差不等且分布呈偏态,欲检验三组人的血浆皮质醇含量有无差别,应选用
A.
单因素方差分析
B.
两样本秩和检验
C.
q检验
D.
成组设计多个样本比较的秩和检验
E.
随机区组设计秩和检验
【单选题】Sometimes a parent supports the child's bad behaviour so that______.
A.
they can show it is the school that is at fault
B.
their child can develop a strong character
C.
they can help their child get rid of the bad behaviour
D.
they can 'bribe' their child with their support
【单选题】We all feel it is Jack as well as his wife that ____ for their son's bad behaviour at school. [ ]
A.
are to blame
B.
is to be blamed
C.
are to be blamed
D.
is to blame
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