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【单选题】
下列对糖类叙述正确的是 ( )A.
都可以溶于水
B.
都含有C、H、O元素
C.
都符合通式C n (H 2 O) m
D.
都有甜味
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【单选题】____ in the United States, St Louis has now become the 4 th largest city.
A.
It is the 24 th biggest city
B.
It was the 24 th biggest city
C.
Before the 24 th biggest city
D.
Once the 24 th biggest city
【单选题】London will be the 30th city _____ holds the Olympic Games. [ ]
A.
where
B.
that
C.
which
D.
what
【单选题】—Which do you like better, the country life or the city life? —_____. On weekdays I like living in the city, but I usually spend my weekends and holidays in the country. [ ]
A.
Sounds good
B.
I think so
C.
It's hard to say
【单选题】Beijing is the 20th city _____ holds the Olympic Games. [ ]
A.
where
B.
that
C.
whom
D.
which
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