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【简答题】
什么是热电效应？热电偶测温回路的热电动势由哪两部分组成？由同一种导体组成的闭合回路能产生热电势吗？
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举一反三
【单选题】It can be inferred from the passage that people's views on beauty are often______.
A.
practical
B.
supportive
C.
old-fashioned
D.
one-sided
【单选题】O'Neal works hard. He is often seen _______ heavily before his teammates have even arrived at practice.
A.
sweated
B.
to be sweated
C.
sweating
D.
being sweated
【单选题】( )(改编)Stephen often practices English________ chatting with his American friend.
A.
in
B.
by
C.
for
D.
with
【单选题】Stephen: I want to send this package parcel post, registered. Clerk: ______ ? Stephen: Yes, please, for sixty dollars.
A.
Do you want it guaranteed
B.
Do you want it insured
C.
Do you want it preserved
D.
Do you want it ensured
【单选题】We should often practi c e _________ English with each other.
A.
to speak
B.
spoke
C.
speak
D.
speaking
【单选题】(改编题)Stephen often practices English________ chatting with his American friend.
A.
in
B.
by
C.
for
D.
with
【单选题】Stephen often practices English_____ chatting with his American friend.
A.
in
B.
by
C.
for
D.
with
【简答题】______ she first heard of the man referred to as a specialist. A) That was from Stephen B) It was Stephen whom C) It was from Stephen that D) It was Stephen that
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