皮皮学，免费搜题
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搜题
【简答题】
人体的共鸣腔主要有 、 、 等
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Sometimes I doubt whether it is worth_______so_________.
A.
to work;hard
B.
to work;hardly
C.
working;hard
D.
working;hardly
【单选题】Sometimes I work _____ the day and sometimes _____ night. [ ]
A.
on, at
B.
at, on
C.
at, in
D.
in, at
【单选题】I sometimes work in the evening, but I ____ at the weekend.
A.
works
B.
don't work
C.
am not work
【简答题】Sometimes I work from _______, sometimes I work ________, sometimes I work _________, so it's all over the place.
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