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【多选题】
选择筑坝土石料应遵循的原则是( )。
A.
填筑坝体的土石料应具有与其使用目的相适应的物理力学性质,并且有较好的长期稳定性;
B.
在不影响工程安全的前提下,优先使用坝址附近的材料和枢纽建筑物的开挖料,或不占农田;
C.
便于开采、运输。
D.
便于施工、碾压。
E.
便于运行、管理和维护。
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【单选题】泵的有效功率是指
A.
原动机的额定输出功率
B.
泵传给液体的功率
C.
泵轴所接受的功率
D.
泵排出的流体实际所得到的功率
【单选题】泵的有效功率是指
A.
原动机的额定输出功率
B.
泵传给液体的功率
C.
泵轴所接受的功率
D.
泵排出的液体实际所得到的功率
【简答题】Government is believed to differ strikingly from business in that government is characterized by______.
【多选题】The government of the United States is called a limited government because __________.
A.
Many terms and articles of the US Constitution were designed to limit the power of government.
B.
The founding fathers believed that neither government nor government officials shall be above the Constitution.
C.
The US federal government has greater power and could limit the power of state governments.
D.
The Bill of Rights further safeguard citizens against possible abuse of power by federal government.
【简答题】A.Yes, the government does. B.No, the government doesn't. C.The government has taken steps to curb the purchase. D.The government neither encourages nor curbs the purchase of personal cars.
【单选题】If someone is dissident , do they a) work for the government or b) disagree publicly with the government?
A.
a) work for the government
B.
b) disagree publicly with the government?
【简答题】Retail banking Appea® of the.pdf
【单选题】We may infer from the second paragraph that
A.
the phenomenon of wage stagnation often appears in historical fiction.
B.
Labor Department released the average hourly wage to show wage stagnation.
C.
the wage would rise by 11% since 2000 if the government didn't overestimate inflation.
D.
economic analyst Ed Yardeni probably agrees with the author on wage stagnation.
【单选题】泵的有效功率是指( )。
A.
原动机的额定输出功率
B.
泵传给液体的功率
C.
泵轴所接受的功率
D.
泵实际排出的液体在单位时间内所增加的能量
【单选题】水泵的有效功率是指:
A.
电机的输出功率
B.
电机的输入功率
C.
水泵输入功率
D.
水泵输出功率
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