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【判断题】
肺炎链球菌肺炎患者的痰的典型性质为铁锈色痰。
A.
正确
B.
错误
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举一反三
【判断题】样本量增大时,极差可能会增大。
A.
正确
B.
错误
【简答题】Work in groups. What departments make up a real estate company? Try to figure out as many as you can and write them down.
【判断题】样本量增大时,极差会增大。
A.
正确
B.
错误
【单选题】Based on the pronunciation of the underlined part, tick out the word that is different from the others.
A.
th e se
B.
l e ss
C.
b e lt
D.
sm e ll
【简答题】Textbook Page59-60 Work in groups. Make a video according to the following information: Mr. White is the general manager of the New Times Electronics Trading Company in Sydney. You are a sales manager...
【单选题】Based on the pronunciation of the underlined part, tick out the word that is different from the others.
A.
c ough
B.
br ough t
C.
s ough t
D.
th ough t
【单选题】Based on the pronunciation of the underlined part, tick out the word that is different from the others.
A.
p ea k
B.
b ea k
C.
br ea th
D.
l ea d
【判断题】样本量增大时,极差会增大。
A.
正确
B.
错误
【判断题】楼地面找平层工程量等于主墙间净长度乘以主墙间净长度减去不做找平层面积
A.
正确
B.
错误
【多选题】下列论断中,不正确的是
A.
均数总是大于中位数
B.
均数总比标准差大
C.
样本均数大时,标准差也一定会大
D.
样本量增大时,极差一定增大
E.
变异系数没有量纲
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