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【单选题】
设商品产量y(件)与商品价格x(元)的一元线性回归方程为y=60+38x,这意味着商品价格每提高1元,产量平均()A.
增加38件
B.
减少38件
C.
增加60件
D.
增加98件
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【单选题】Which of the following is NOT correct?
A.
Female flight attendants can also be called stewardesses or air hostesses.
B.
The number of the cabin attendants for each flight is often the same.
C.
A purser will be charge of the flight attendants.
D.
Flight attendants will do a variety of work for each flight.
【单选题】Which of the following statements is NOT correct?
A.
fair play can maximize the potential benefits from sport.
B.
fair play is now on the central stage of sport.
C.
fair play should be given the highest priority.
【简答题】Which is NOT the correct statement in the following?
【简答题】翻译: 顺风而呼,声非加疾也,而闻者彰。
【单选题】现有5人的血清滴度为<1:20,1:40,1:80,1:160,1:320,描述平均滴度以 ( ) 指标较好。
A.
算术均数
B.
几何均数
C.
中位数
D.
百分位数
【单选题】Which of the following statements is CORRECT?
A.
The traveler is reluctant to buy travel insurance.
B.
The traveler is ready to buy travel insurance.
C.
The traveler doesn't have to buy travel insurance.
D.
Travel insurance is not mentioned in the conversation.
【简答题】我国药品质量标准的类别有哪些?它们分别是由哪个部门制定的?哪个的级别最高?
【简答题】Which is NOT the correct statements in the following?
【单选题】现有5人的血清滴度为1:20,1:40,1:80,1:160,1:320,描述平均滴度以 ( ) 指标较好。
A.
百分位数
B.
中位数
C.
几何均数
D.
算术均数
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