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【判断题】
三相负载作三角形联接时,无论负载对称与否,线电路必定等于对应负载的相电流
A.
正确
B.
错误
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参考答案:
举一反三
【判断题】国际货运代理投保责任险,是防止或减少其责任风险的主要办法之一。( )
A.
正确
B.
错误
【单选题】If menstrual cycle is 28 days,when will blastocyst begin implatation?( )
A.
D 5~6
B.
D10~11
C.
D14~16
D.
D20~21
E.
D28~30
【简答题】阅读理解. A nearly ice-free Arctic Ocean inthe summer may happen three timessooner than scientists have assessed.New research says the Arctic might lose most of its ice cover in summer in as few as 30 yea...
【单选题】Beijing, ______for hosting the 2008 Olympic Games, ____its first loop (圈) of green belt around the downtown, ____an area of 102.3 square kilometers, in the past three years.
A.
prepared; built; covered
B.
preparing; built; and covered
C.
which prepares; building; covers
D.
preparing; built; covering
【单选题】国际货运代理投保责任险,是防止或减少其责任风险的主要办法之一。( )
A.
正确
B.
错误
【判断题】在精密仪器类工厂,不要用飘毛、飘絮的树种;防火要求高的工厂,不要用油脂性高的树种。
A.
正确
B.
错误
【简答题】Gap fill Put these words into the spaces in the paragraph below. first resumed moratorium auctioned port quota snapped whalers Japan has (1) ____________ commercial whaling after a hiatu...
【判断题】图片是企业微博焦点区的表现形式 ( )
A.
正确
B.
错误
【单选题】下列产生的热量与1L麦芽汁浓度为12%的啤酒经消化后所产生的热量相同的是
A.
.痩猪肉150g
B.
. 牛肉 180g
C.
. 鸡蛋200g
D.
. 面包250g
【简答题】影响种子寿命的环境条件与生理因素有哪些?
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