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【单选题】
电感线圈电感量的基本单位是 ( )。A.
H
B.
V
C.
F
D.
W
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【多选题】以下关于矩形波导TE10模的说法正确的是
A.
TE10模只有 Ey、Hx 和 Hz 三个场分量
B.
电场不随x变化
C.
电场在波导边壁 x=0、x=a处为零
D.
电场在横截面中央x=a/2处最大
【单选题】The best title of this passage could be ______.
A.
Computers Will Replace Shops and Books
B.
How Computers Change Our Habits
C.
Computers Are the Future
【简答题】【 2014·湖南卷】 21 . Children,when ______(accompany) by their parents, are allowed to enter the stadium.
【单选题】( 广东卷 )32. The young girl sitting next to me on theplane was very nervous. She_________ before.
A.
hasn't flown
B.
didn'tfly
C.
hadn'tflown
D.
wasn't flying
【单选题】【 2014·江西卷】26. When it comes to __ in public, no one can match him.
A.
speak
B.
speaking
C.
being spoken
D.
be spoken
【简答题】请简要描述光合作用原初反应的过程?
【简答题】• 【 2014 广东卷】 When we were wondering what to do, the manager came out. She was 22__ (surprise) helpful.
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