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【单选题】
碳酸盐类岩石的溶解能力，主要取决于水中( )的含量。A.
硫酸根离子
B.
二氧化碳
C.
氯离子
D.
氧元素
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举一反三
【单选题】There are so many dresses there that I really don't know ______ to choose.
A.
whether
B.
when
C.
which
D.
why
【简答题】There are so many dresses there that I really don't know ______ to choose. A) whether B) when C) which D) why
【单选题】There are so many bad things about women drivers, I don't know where to start. I guess I will get the bail rolling by talking about one of my biggest pet peeves. Why do women have to wait until they a...
A.
sarcastic
B.
serious
C.
sympathetic
D.
conservative
【单选题】—Look! There so many people in the park. —Nobody likes to stay at home ______ Sunday morning. [ ]
A.
in
B.
on
C.
at
D.
to
【简答题】The boy’s honesty is beyond ___________. (suspect)
【单选题】There are so many dresses there that I really don't know ___ to choose.
A.
whether
B.
which
C.
when
D.
why
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