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【单选题】
三相交流电路中，当电源对称联结，三相负载三角形联结时，负载线电流是相电流的（ ）倍。A.
0.707
B.
1
C.
1.414
D.
1.732
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举一反三
【单选题】The work of art,_____is titled 'Cosmic Magnet' , will be exhibited for several days in the central square of Milan.
A.
who
B.
which
C.
what
D.
whose
【单选题】The problem with the cell phone appeared
A.
several weeks ago.
B.
several days ago.
C.
several months ago.
D.
this afternoon.
【单选题】These days the government has issued several economic policies that will ________ prosperity of manufacturing industry. [ ]
A.
accumulate
B.
accomplish
C.
access
D.
accelerate
【简答题】If you study on this course，you must live in the college for several days．
【简答题】time these days. Heather attend several classes and lectures ______
【单选题】There are several popular ________for children on television these days. [ ]
A.
cartoons
B.
theatres
C.
stars
D.
sports
【单选题】After the funeral the widow and family spent several days in ______.
A.
solitude
B.
isolation
C.
retirement
D.
seclusion
【单选题】关于毛细淋巴管,何者__为错__( )
A.
常与毛细血管交织在一起
B.
起于组织间隙内
C.
管腔粗细一致,均匀
D.
管壁由单层内皮细胞构成
E.
管壁通透性大于毛细血管
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