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【简答题】
在社会基本矛盾的解决过程中,人民群众是( )生产力发展要求的社会力量。
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举一反三
【单选题】设X线管的阳极倾角为θ，下列公式正确的是( )
A.
有效焦点=实际焦点xcosθ
B.
有效焦点=实际焦点x sinθ
C.
实际焦点=有效焦点x sinθ
D.
实际焦点=有效焦点x cosθ
E.
有效焦点=实际焦点×θ
【单选题】设X线管的阳极倾角为θ，下列公式正确的是（）
A.
实际焦点 = 标称焦点 *cos θ
B.
标称焦点 = 实际焦点 *sin θ
C.
实际焦点 = 标称焦点 *sin θ
D.
标称焦点 = 实际焦点 *cos θ
【单选题】In the 1980s, the amount of money one made appeared to be the only measurement of his or her success.
A.
Y
B.
N
C.
NG
【单选题】What's the main measurement used for protecting the safety and health of public in U.S. before World War II?
A.
Hazard controlling
B.
Systematic safety management
C.
Corporate downsizing
D.
Safety training
【简答题】老子的主要思想记录在哪部著作中？
【多选题】The transformer cabin is located at the center of the locomotive and consists of the main transformer,( ) , and three kinds of ( )s for the protection, the measurement and the control of the loc...
A.
the PFC switch cubicle
B.
AC current inductors
C.
DC current inductors
【单选题】The U.S. system of measurements, also called the English measurement system, has five different types of ounces. Which is NOT one of them?
A.
avoirdupois ounces
B.
paper ounces
C.
imperial fluid ounces
D.
apothecary ounces
【简答题】老子的主要思想记录在哪部著作中？
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