皮皮学，免费搜题
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【单选题】
能满足同一需要的各种产品的生产者互为( )竞争者。A.
愿望
B.
类别
C.
产品形式
D.
品牌
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】–What do the students need do? –The exam_______ over, the students were required to hand in their paper.
A.
being
B.
was
【单选题】The students were instructed to do the experiment carefully and to ______ their report at the beginning of next week.
A.
turn out
B.
turn in
C.
turn off
D.
turn down
【简答题】按照“热情接待，认真听记，()，()”的信访受理原则，热情接待来访人员。
【单选题】The students were______the prospect of having to do their projects all over again.
A.
faced with
B.
charged with
C.
related to
D.
accustomed to
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