单项选择题

Since mixtures are composed of two or more pure substances, each______ changes state at a different temperature.

A．company
B．companion
C．compound
D．component
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单项选择题
I think she hurt my feelings______ rather than by accident as she claimed.
A．virtually
B．literally
C．deliberately
D．appropriately
单项选择题
The author's attitude toward wit can most accurately be described as______.
A．cautious admiration
B．wholehearted amusement
C．tolerant disapproval
D．aversion
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