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【判断题】
并联电容器可以提高电路的功率因数,因此并联电容器的容量越大,功率因数将被提得越高。A.
正确
B.
错误
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皮皮学刷刷变学霸
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【单选题】停电检修时,在一经合闸即可送电,到工作地点的开关,和刀闸的操作把手上应悬挂如下哪种标示牌( )
A.
在此工作
B.
止步，高压危险
C.
禁止合闸，有人工作
D.
请勿触摸、
【单选题】Sue views hot dogs and hot dog buns as perfect complements in her consumption, and the corners of her indifference curves follow the 45-degree line. Initially, the price of hot dogs is $3 per package...
A.
Sue does not change her consumption because these goods are perfect complements.
B.
She buys the same amount of hot dog buns and buys more hot dogs.
C.
She buys the same amount of hot dogs and buys two less packages of hot dog buns.
D.
She reduces her consumption by 2 packages of hot dogs and 2 packages of hot dog buns.
【简答题】阅读理解 In their book Time to Eat the Dog: The Real Guide to Sustainable Living, Robert and Brenda Vale say keeping a mediumsized dog has the same ecological impact as driving 10,000 km a year in a 4.6 l...
【简答题】In their book Time to Eat the Dog: The Real Guide to Sustainable Living, Robert and Brenda Vale say keeping a mediumsized dog has the same ecological impact as driving 10,000 km a year in a 4.6 liter...
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