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【单选题】
旋转磁场的产生是由于( )
A.
三相定子绕组通以三相交流电流而形成的
B.
三相定子绕组通以直流励磁电流而形成的
C.
转子线圈中通以三相交流电流而形成的
D.
以上说法都不正确
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【单选题】It's very convenient ______ us to buy train tickets now because we can buy them  either from the station or on the internet. [     ]
A.
to
B.
of
C.
by
D.
for
查看完整题目与答案
【单选题】When dragging of an anchor occurs, you must back it up with a piggyback (backing) anchor or ( ).
A.
reduce the riser tension
B.
reposition it at a greater range
C.
change the winch
D.
change the anchor heading
查看完整题目与答案
【单选题】It’s very convenient ______ us to buy train tickets now because we can buy them either from the station or on the Internet.
A.
to
B.
of
C.
by
D.
for
查看完整题目与答案
【单选题】【单选】When dragging of an anchor occurs, you must back it up with a piggyback (backing) anchor or__________.
A.
reduce the riser tension
B.
reposition it at a greater range
C.
change the winch
D.
change the anchor heading
查看完整题目与答案
【单选题】When dragging of an anchor occurs, you must be back it up with a piggyback (backing) anchor or _____.
A.
reduce the riser tension
B.
reposition it at afreater range
C.
change the winch
D.
change the anchor heading
查看完整题目与答案
【多选题】仓库按照保管的条件分类,可以分为
A.
冷藏仓库
B.
保温恒温恒湿仓库
C.
特种仓库
D.
气调仓库
查看完整题目与答案
【简答题】你写完作文了吗?
查看完整题目与答案
【判断题】司马迁在《史记平原君列传》中发了几句议论，认为平原君大局观很差劲，“利令智昏”说的就是他这样的。
A.
正确
B.
错误
查看完整题目与答案
【单选题】When dragging of an anchor occurs, you must back it up with a piggyback (backing) anchor or .
A.
reduce the rise tension
B.
reposition it at a greater range
C.
change the winch
D.
change the anchor heading
查看完整题目与答案
【单选题】When dragging of an anchor occurs, you must be back it up with a piggyback (backing) anchor or _____.
A.
 reduce the riser tension
B.
reposition it at a greater range
C.
change the winch
D.
change the anchor heading
查看完整题目与答案
相关题目：
【单选题】It's very convenient ______ us to buy train tickets now because we can buy them  either from the station or on the internet. [     ]
A.
to
B.
of
C.
by
D.
for
查看完整题目与答案
【单选题】When dragging of an anchor occurs, you must back it up with a piggyback (backing) anchor or ( ).
A.
reduce the riser tension
B.
reposition it at a greater range
C.
change the winch
D.
change the anchor heading
查看完整题目与答案
【单选题】It’s very convenient ______ us to buy train tickets now because we can buy them either from the station or on the Internet.
A.
to
B.
of
C.
by
D.
for
查看完整题目与答案
【单选题】【单选】When dragging of an anchor occurs, you must back it up with a piggyback (backing) anchor or__________.
A.
reduce the riser tension
B.
reposition it at a greater range
C.
change the winch
D.
change the anchor heading
查看完整题目与答案
【单选题】When dragging of an anchor occurs, you must be back it up with a piggyback (backing) anchor or _____.
A.
reduce the riser tension
B.
reposition it at afreater range
C.
change the winch
D.
change the anchor heading
查看完整题目与答案
【多选题】仓库按照保管的条件分类,可以分为
A.
冷藏仓库
B.
保温恒温恒湿仓库
C.
特种仓库
D.
气调仓库
查看完整题目与答案
【简答题】你写完作文了吗?
查看完整题目与答案
【判断题】司马迁在《史记平原君列传》中发了几句议论，认为平原君大局观很差劲，“利令智昏”说的就是他这样的。
A.
正确
B.
错误
查看完整题目与答案
【单选题】When dragging of an anchor occurs, you must back it up with a piggyback (backing) anchor or .
A.
reduce the rise tension
B.
reposition it at a greater range
C.
change the winch
D.
change the anchor heading
查看完整题目与答案
【单选题】When dragging of an anchor occurs, you must be back it up with a piggyback (backing) anchor or _____.
A.
 reduce the riser tension
B.
reposition it at a greater range
C.
change the winch
D.
change the anchor heading
查看完整题目与答案