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【单选题】
变压器的其它条件不变,外加电压增加 10 c/o,则漏抗 X 1σ ,副边漏抗 X 2σ 将 。A.
不变
B.
增大10%
C.
减小 10%
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【单选题】—David has been in low spirits these days. — _________ He should have failed in the Math test. A
A.
35. —David has been in low spirits these days. — _________ He should have failed in the Math test. A．How come?
B.
How is it?
C.
Guess what?
D.
No wonder
【单选题】David has been in Beijing for ________ .
A.
two and a half weeks
B.
two and half a week
C.
two and the half weeks
D.
two and a half week
【单选题】David has been studying here for three years and by next August he .
A.
will graduate
B.
will be graduated
C.
will be graduat ing
D.
will have graduated
【简答题】衡水是西汉大哲学家、儒家学派一代宗师( )的故里。
【单选题】Mr. David has been to Many cities in China , _____Xi’an has impressed him most.
A.
of which
B.
in which
C.
with which
D.
on which
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