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【单选题】
离散程度的测度,不包括( )A.
算术平均数
B.
极差
C.
方差
D.
离散系数
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反馈参考答案：
举一反三
【单选题】● Which of the following is not part of the quality assurance process?（73） （73）
A.
Operational definitions
B.
Quality policy
C.
Quality audits
D.
Quality improvement
【简答题】T he exercises of part I and part II on page 6 of the student’s book
【简答题】以下哪种行为是拉票贿选、破坏选举( )。 A.仿造选票 B.受人委托代写选票 C.放弃选举 D.按程序参加选举
【单选题】—We spent all our money because we stayed at the most expensive hotel in town. —Why didn't you stay at a one? [ ]
A.
cheap
B.
cheaper
C.
cheapest
D.
expensive
【单选题】Header and Footer are strings of text that are placed at the(73)of each page of a document．
A.
left or right
B.
up or down
C.
above or below
D.
top or bottom
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