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【多选题】
下列属于非质子性溶剂的有A.
水
B.
丙酮
C.
吡啶
D.
正己烷
E.
石油醚
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【简答题】Nowadays the Internet is wildly used for studying, shopping, entertainment, etc. on the campus. Some people say that the Internet facilitates students lives while others dont agree. What is your opini...
【单选题】Let’s hope the fine weather ______ for Sunday’s camping trip.
A.
keeps up
B.
picks up
C.
carries on
D.
puts up
【单选题】Everything was perfect for the picnic _____ the weather.
A.
in place of
B.
as well as
C.
except for
D.
in case of
【单选题】. The ________ flight CA9525 for 11:30 a.m. is to be put off because of the stormy weather.
A.
formal
B.
regular
C.
ordinary
D.
common
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