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【单选题】
在正旋交流电的波形图上,若两个正旋量正交,说明这两个正旋量的相位差是( )。A.
180°
B.
60°
C.
90°
D.
0°
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反馈参考答案：
举一反三
【单选题】The 0SPFv3 process will send hello packets to which of the follov/ing well-known addresses？（）
A.
255.255.255.255
B.
224.0.0.6
C.
FFFF://FFFF://FFFF://FFFF://FFFF://FFFF://FFF://FFF
D.
FF02：：10
E.
224.0.0.10
F.
FF02：：5
【简答题】06×O.03的积有四位小数．______（判断对错）
【多选题】When a business plans to send messages via socializing apps to make a buzz, it needs to consider:
A.
Message strategy.
B.
Channel strategy.
C.
Message frequency.
D.
Price.
【单选题】We consider（）send a helicopter with medical facilities to the distress area.
A.
it necessary
B.
it is necessary
C.
it necessary to
D.
necessary
【简答题】It was very______(consider) of you to send me a postcard.
【单选题】It took building supplies to contruct these energy—house . It took brains , too .
A.
other than
B.
more than
C.
rather than
D.
less than
【单选题】It took ability to get the job. It took luck, too.
A.
rather than
B.
other than
C.
more than
D.
less than
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