题目内容

How to interpret the uab = -1 volt in two ways?

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What relation is between power and energy?

Why do current direction and voltage polarity play a major role in determining the characteristics of power?

如果一名队员用他的手、胳膊、腿或者身体去阻止对方队员获得球,他应该被判罚()

A. 直接任意球
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国际足联的英文缩写是( )

A. FIFA
B. AFC
C. FOOTBALL

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