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【单选题】
对于一组测定数据，平均偏差与标准偏差相比， 更能灵敏的反映较大偏差的是（ ）A.
标准偏差
B.
平均偏差
C.
不确定
D.
方差
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反馈参考答案：
举一反三
【单选题】Who are the speakers?
A.
Salesman and customer.
B.
Manager and secretary.
C.
Nurse and patient.
【单选题】Who are the speakers?
A.
a. English majors.
B.
b. Senior students at college.
C.
c. Beginners in English study.
D.
d. Non-English majors at college.
【单选题】Who are the speakers?
A.
English majors
B.
senior students at college
C.
beginners in English study
D.
non-English majors at college
【单选题】Who are the speakers?
A.
Waitress and customer.
B.
Hostess and guest.
C.
Shop assistant and customer.
【单选题】Who are the speakers?
A.
A Student and a teacher.
B.
An interviewer and clerk.
C.
A student and a president.
D.
An employer and an employee.
相关题目：
【单选题】Who are the speakers?
A.
Salesman and customer.
B.
Manager and secretary.
C.
Nurse and patient.
参考解析：
知识点：
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