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【单选题】
已知一个电感L=2H,接在u=220√2sin(314t-60°)V的电源上，则电感元件的无功功率Q为A.
66var
B.
77var
C.
88var
D.
99var
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举一反三
【单选题】The head of the phrase “on the shelf” is __________.
A.
on
B.
the
C.
shelf
D.
on the shelf
【单选题】据《素问·阴阳应象大论》确定的治疗原则,属于实者泻之的是( )
A.
气虚宜掣引之
B.
血实宜决之
C.
因其衰而彰之
D.
精不足者,补之以味
E.
形不足者,温之以气
【简答题】The workers put several wooden shelves on a steel _________ to make a tool shelf.
【单选题】This wooden shelf cannot _____the weight of all these books uphold support sustain advocate.
A.
uphold
B.
support
C.
sustain
D.
advocate
【单选题】In the middle of the room stands a__________ table.
A.
beautiful wooden round
B.
round wooden beautiful
C.
wooden beautiful round
D.
beautiful round wooden
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