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【单选题】
—Mr. Smith, I don’t think I can get along with my classmates as a new student. --_____,Tom. Everything will be fine.A.
Forget it
B.
Take it easy
C.
Don’t mention it.
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举一反三
【单选题】— Excuse me. Do you happen to have change for a 50－pence piece? — __________. I’ve just used up
A.
14. — Excuse me. Do you happen to have change for a 50-pence piece? — __________. I’ve just used up all my coins. A．I don’t believe so
B.
I can’t agree more
C.
I’d rather not
D.
I’m afraid not
【简答题】第二章作业简答题:单模光纤的色散由那些部分组成?色散位移光纤(DSF),色散补偿光纤(DSF)和非零色散位移光纤(NZ-DSF)是通过改变光纤的什么参数来调整总色散的?
【简答题】G.653色散移位光纤的特点是什么？
【单选题】--- I have already finished my homework.
A.
- Really? When _________ you _________ it?
B.
will, finish
C.
did, finish
D.
have, finished
E.
do, finished
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