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【简答题】
碳原子的杂化类型有 、 、 三类
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举一反三
【简答题】A．上先受之 B．外先受之 C．阴受之 D．阳受之 E．下先受之 伤于风者( ) 伤于湿者( ) 犯贼风虚邪者( )
【单选题】Peter has been out of work for half a year, so he wants to a job in this company .
A.
． prepare for
B.
． apply for
C.
． wait for
D.
． care for
【单选题】She ought (to) (stopping work); She (has a headache) because she has been reading (too) long.
A.
to
B.
stopping work
C.
has a headache
D.
too
【单选题】Because he has been out of _____ work for months, Jack now has to depend on his parents for _____living.
A.
/; a
B.
the; a
C.
/;/
D.
the; /
【简答题】There has been an increase in________ number of people looking for ________ work. [A]/; the [B]the; the [C]the;/ [D]a; the
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