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【单选题】
( )是指在精确度界限和可靠程度一定的条件下，为了测定总体特征的发生频率而采用的方法。A.
属性抽样
B.
变量抽样
C.
任意抽样
D.
判断抽样
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【单选题】The noise around was terrible, but I had to______it.
A.
keep away from
B.
keep up with
C.
live with
D.
live on
【单选题】February is the month ______ is usually the coldest.
A.
the weather
B.
whose weather
C.
its weather
D.
when the weather
【简答题】指出错误并改正。 1. When is you mother's birthday ? A B C D 2. February is second month of the year . A B C D 3. He is a 13- years - old boy . A ...
【简答题】用适当的词填空。 1. January is the _________ month of the year. 2. February is the _________ month of the year. 3. December is the _________ month of the year. 4. _________ is the third month of the year. 5. ...
【单选题】What‘s your favourite season?
A.
I like fall best.
B.
February is my favourite.
C.
I swim in summer.
【单选题】I _______ keep dogs for protection, but now I keep them as pets.
A.
would rather
B.
had better
C.
used to
D.
have to
【简答题】幼儿园谈话活动着重培养幼儿( )方面的语言运用能力。
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