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【单选题】
不论是数字的还是模拟的通信系统，只要进行相干解调都需要 。A.
载波同步
B.
网同步
C.
位同步
D.
群同步
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反馈参考答案：
举一反三
【单选题】Well, you know, English is my . So it is my best choice.
A.
talent
B.
strength
C.
ability
D.
skill
【单选题】The number of government soldiers killed, captured and wounded in the ambush is ______.
A.
18
B.
23
C.
25
D.
30
【单选题】My English is so poor that I _____ my English. [ ]
A.
need help with
B.
need to help
C.
need helping
D.
need for helping
【单选题】My sister speaks English＿＿＿＿＿, if not better than, my brother.
A.
as well
B.
as well as
C.
so well
D.
so well as
【简答题】A) gripped B) seized C) grasped D) captured
【单选题】-Jack, do you like English? -No. So my English is very ________. [ ]
A.
poor
B.
good
C.
different
【简答题】A．gripped B．seized C．grasped D．captured
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