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【单选题】
水洗法除灰的缺点不包括（）。A.
耗淡水多
B.
可能对管子和锻筒造成酸性腐蚀
C.
可能浸坏耐火砖和电器设备
D.
可能对管子和锻筒造成碱性腐蚀
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【单选题】Technology Transfer in Germany When it comes to translating basic research into industrial success, few nations can match Germany. Since the 1940s, the nation's vast industrial base has been fed with ...
A.
Technologytransfe
B.
Good management.
C.
Hard work.
D.
Fierce competition.
【简答题】in southern Pakistan’s Indus River Valley, Mohenjo Daro is the largest and best-preserved city of the Indus civilization, the earliest known civilization of the Indian subcontinent.
【单选题】In Forces of Production, David Noble examines the transformation of the machine-tool industry as the industry moved from reliance on skilled artisans to automation. Noble writes from a Marxist perspec...
A.
reexamining a political position and defending its validity
B.
examining a management decision and defending its necessity
C.
analyzing a scholarly study and pointing out a central weakness
D.
explaining a trend in automation and warning about its dangers
【单选题】孔子要求"学而时习之""温故而知新"，乌申斯基认为"复习是学习之母"。这体现了我国目前中小学的教学原则的（）。
A.
思想性和科学性的统一
B.
理论联系实际原则
C.
巩固性原则
D.
启发性原则
【简答题】求S(n)=a+aa+aaa+...+a...a (n个a)之值,其中a是一个0-9的数字,n表示a的个数. 例如2+22+222, 此时n=3,a=2,
【单选题】孔子要求“学而时习之”“温故而知新”，乌申斯基认为“复习是学习之母”。这体现了我国目前中小学哪一教学原则？（）
A.
思想性和科学性的统一原则
B.
理论联系实际原则
C.
巩固性原则
D.
启发性原则
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