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【单选题】
电动机定子绕组的的联结方式有Y形和△形两种，其中()联结是将定子绕组的首端接入电源，尾端相连。A.
Y形
B.
△形
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举一反三
【单选题】The theory that ocean basins were caused by meteoroid impact______.
A.
has fallen into wide dispute ever since it was proposed
B.
fails to explain how continents were originated and have changed
C.
was discarded as unacceptable immediately after it was proposed
D.
rightly explains the formation of most of the ocean basins
【单选题】Forty years ago people were indifferent to the health of the ocean because ______.
A.
the ocean was immune to any pollution then
B.
they didn't know what would come of if the ocean was deadly disrupted
C.
there was no computer then
D.
there wasn't any problem with the ocean at that time
【简答题】It the ocean were free of ice, storm paths would move further north, ________ the plains of North America of rainfall. A) to deprive B) deprived C) depriving D) deprived
【简答题】Myoedema is accumulation of fluid in a(n)___________.
【单选题】Forty years ago people were indifferent to the health of the ocean because_____.
A.
the ocean was immune to any pollution then
B.
they didn't know what would come of if the ocean was deadly disrupted
C.
there was no computer then
D.
there wasn't any problem with ocean at that time
【单选题】WHY were scientists unable to send instruments deep into the Southern Ocean?
A.
because the ocean is way too big
B.
because a lot of the ocean is icy
C.
because the ocean is warming
D.
because a lot of the ocean is gone
【单选题】If the ocean were free of ice, storm paths would move further north, ______ the plains of North America of rainfall.
A.
to deprive
B.
deprived
C.
depriving
D.
deprive
【单选题】If the ocean were free of ice, storm paths would move further north, ______ the plains of North America of rainfall.
A.
deprive
B.
to deprive
C.
deprived
D.
depriving
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