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【判断题】
群体是两个或两个以上相互作用、相互依赖的个体,为了实现某一特定目标而组成的集合体。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】This year we' 11 produce ______ steel as we did last year.
A.
three times as much
B.
as three times much
C.
as much three times
D.
three times much as
【单选题】From the first three paragraphs, we can infer that
A.
the author would prefer playing with his three older siblings to staying with his grandpa.
B.
they were living in the suburbs where there were not too much traffic on the road.
C.
the grandpa was always the one to babysit for the author and his siblings.
D.
the author enjoyed the time that he spent with his grandpa.
【单选题】We’ll have a________ holiday. Let’s go to the beach，shall we?
A.
three-day
B.
three days
C.
three-days
D.
three-days’
【单选题】We talked for morn than three hours without ______ a cup of tea.
A.
to have
B.
having
C.
have
D.
had
【简答题】水平子系统又称为 子系统
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