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【单选题】
社会研究者通过“丢邮件或物品”,原来研究某个地区人们的助人行为。这属于()。A.
痕迹观察
B.
行为标志观察
C.
直接观察
D.
实验室观察
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【单选题】Anyone ? works in the retail business needs to be good at calculating and communicating
A.
which
B.
who
C.
whom
D.
what
【简答题】The retail business in Asia has as rapidly since the 1990s.
【单选题】Anyone works in the retail business needs to be good at calculating and communicating.
A.
which
B.
whom
C.
who
D.
what
【简答题】请将下列文本CSS文本属性与其含义配对
【简答题】简述 生态系统中四个基本组成成分的作用?
【单选题】Anyone ( ) works in the retail business needs to be good at calculating and communicating.
A.
which
B.
who
C.
whom
【单选题】Anyone works in the retail business needs to be good at calculations and communicating.
A.
which
B.
whom
C.
who
D.
what
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