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【单选题】
权数对算术平均数的影响作用,实质上取决于A.
作为权数的各组单位数占总体单位数比重的大小
B.
各组标志值占总体标志总量比重的大小
C.
标志值本身的大小
D.
标志值数量的多少
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举一反三
【单选题】Usually, trade fairs can only be attended by _____ and members of the press.
A.
company representatives
B.
B. the public
C.
C. customers
D.
D. everyone
【单选题】There is ______ on Channel 6, please try to find it.
A.
important something
B.
something important
C.
important anything
【单选题】听力原文：W: Let's try to find seats in the front. M: Listen, we'll be lucky to find a place to stand at this concert. Q: What does the man mean? (16)
A.
He can't find the tickets.
B.
He doesn't want to sit in the front.
C.
He would rather stand than sit down.
D.
He expects the hall to be crowded.
【单选题】Please read the story carefully and try to _____ the answers. [ ]
A.
look
B.
see
C.
look for
D.
find out
【单选题】Usually, trade fairs can only be attended by _____ and members of the press.
A.
company representatives
B.
the public
C.
customers
D.
everyone
【简答题】As we know, animals are our friends. Please read the following descriptions and try to find out what kinds of animals they are. Hi! I am Molly. I am twelve years old. I 46 from Africa. I like to play ...
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