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【多选题】
数据的集中趋势分析用来反映数据的一般水平,常用的指标有( )A.
· A 、平均值
B.
· B 、均值标准误差
C.
· C 、中位数
D.
· D 、众数
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【简答题】冻干法属于物理脱水,其工作原理主要依据__________。
【单选题】Why don’t you introduce me the one _______ attended the party yesterday?
A.
what
B.
whose
C.
who
【单选题】If you are to introduce one person to another, which of the following is INCORRECT?
A.
You would introduce a lady to a gentleman.
B.
You would introduce a junior executive to a senior executive.
C.
You would introduce a younger person to an older person.
D.
You would introduce a peer in your company to a peer in another company.
【简答题】The examiners introduce themselves and then one examiner asks you and your partner to say your names and spell them. This examiner then asks you questions about yourself, your daily life, interests, e...
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