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【多选题】
理论在下列哪些条件下成立A.
均匀电场
B.
不均匀电场
C.
短间隙
D.
长间隙
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皮皮学刷刷变学霸
举一反三
【单选题】The pale man looked as if he ______________ a ghost ( 鬼 ).
A.
was seeing
B.
saw
C.
had seen
D.
should see
【简答题】Please list as many types of transportation as possible
【简答题】整体认读音节 zhi chi shi ri zi ci si yi wu yu ye ...
【单选题】As the plane circled over the airport, everyone sensed that something was wrong. The plane was moving unsteadily through the air, and【B1】the passengers had fastened their seat belts, they were suddenl...
A.
although
B.
while
C.
therefore
D.
then
【单选题】The pale man looked as if he ________ a ghost.
A.
was seeing
B.
saw
C.
had seen
D.
should see
【简答题】一个几何体的三视图及其尺寸如下（单位：cm）． （1）画出该几何体的直观图，并说明图形名称（尺寸不作要求）； （2）求该几何体的表面积
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