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【单选题】
天平法测定密度的基本依据是( )。A.
欧姆定律
B.
阿基米德定律
C.
引力定律
D.
牛顿定律
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举一反三
【单选题】—Could I _______a book from you? —Of course. And you mustn’t_______ it to others.
A.
borrow; lend
B.
lend; borrow
C.
keep; lend
D.
borrow; keep
【单选题】—Could you fetch me my glasses from the study?
A.
_______ .
B.
I’m afraid not.
C.
Sure, no problem.
D.
It doesn’t matter.
E.
That’s impossible.
【单选题】— Could you please ______ me your CD? — Sorry, Emily ______ it an hour ago. [ ]
A.
lend; borrow
B.
lend; borrowed
C.
borrow; lent
D.
borrow; lend
【简答题】量化可以分为（）和非均匀量化两大类。
【单选题】Could you tell me ______ in this popular tourist attraction in winter?
A.
if it often snowed
B.
whether does it often snow
C.
if it often snow
D.
whether it often snows
【简答题】我国和欧洲采用的PCM非均匀量化方式实现方法为()，共分()个量化级，而日本和北美采用的非均匀量化方法是()。
【单选题】---Could you lend me your pen? --- Yes, _______.
A.
here you are
B.
never mind
C.
I don't mind
D.
go ahead
【单选题】There is ________ with my radio. Could you repair it for me?
A.
wrong anything
B.
anything wrong
C.
something wrong
D.
wrong something
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