题目内容
RL串联电路中,无功功率就是做的无用功。( )
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1.Good teachers should encourage students to use their ________ to express themselves and make them feel proud of what they can achieve.
Life is full of _________. We should be strong enough to face up to them.
Setting a goal and going ________ to achieve it can be a great test of one's will and perseverance.
How determined one is to achieve one's dream is clearly a sign that can be used to _______ success.
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