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问题 单项选择题

According to cognitive theories of emotion,______anger occurs when______individuals believe that they have been harmed and that______harm was both avoidable and undeserveD．

A．a.../...the
B．an.../...a
C．/.../...the
D．/.../...a

答案

参考答案：C

单项选择题 A1型题

配对t检验的无效假设（双侧检验）一般可表示为（）

A.μ1=μ2

B.μ1≠μ2

C.μd=0

D.μd≠0

E.两样本均数无差别
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选择题

Though different body movements mean different things in different cultures, ______smile

is ______ accepted as a sign of happiness or being friendly.     [ ]

A. the ; universally  

B. the; usually  

C. a; globally  

D. a; universal

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