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【单选题】
两变数资料相互关系的分析中测定相关性质和密切程度的统计量是( )A.
ρ
B.
r
C.
r 2
D.
b
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举一反三
【简答题】Mary's performance improved dramatically after her teacher singled her out for praise in class．
【单选题】白酒总酯计算公式中c代表什么
A.
硫酸(1/2H2SO4)标准滴定溶液的实际浓度
B.
乙酸乙酯的摩尔质量
C.
空白试验消耗硫酸标准滴定溶液的体积
D.
样品消耗硫酸标准滴定溶液的体积
【单选题】白酒总酯计算公式中88代表什么
A.
硫酸(1/2H2SO5)标准滴定溶液的实际浓度
B.
乙酸乙酯的摩尔质量
C.
空白试验消耗硫酸标准滴定溶液的体积
D.
样品消耗硫酸标准滴定溶液的体积
【单选题】When Helen saw his tutor nod ________ to her, she calmed down and went on with her performance.
A.
encouragingly
B.
amazingly
C.
interestingly
D.
astonishingly
【单选题】in Super Girls that Duan Linxi became known to almost all teenagers.
A.
So successful her performance was
B.
So successful was her performance
C.
So her performance was successful
D.
So was her successful performance
【单选题】The singer was ______during the performance.
A.
at her better
B.
at her best
C.
better
D.
on her best
相关题目：
【简答题】Mary's performance improved dramatically after her teacher singled her out for praise in class．
【单选题】白酒总酯计算公式中88代表什么
A.
硫酸(1/2H2SO5)标准滴定溶液的实际浓度
B.
乙酸乙酯的摩尔质量
C.
空白试验消耗硫酸标准滴定溶液的体积
D.
样品消耗硫酸标准滴定溶液的体积
参考解析：
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