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【简答题】
一般情况下,锁相环路的同步带 ΔfH( )(填 “大于”或“小于”或“等于”)捕捉带ΔfP
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举一反三
【单选题】W i th the kind-hearted boy ____ me with my work,I’m sure I’ll be able to spare time ___ with your work.
A.
to help;help you out
B.
helping;helping you
C.
helped;to help you out
D.
to help;to help you
【单选题】My friend Alex is handsome boy, boy everyone likes to work with. [ ]
A.
a; a
B.
a; the
C.
the; a
D.
the; the
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