单项选择题

In classifying the aim is to sort objects by their selected properties into _________ categories.

A．anonymous
B．instantaneous
C．spontaneous
D．homogeneous
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单项选择题
Doctors say that heavy drinkers are generally more susceptible to _________ diseases.
A．powerful
B．infectious
C．influential
D．suspicious
单项选择题
The word condone (Line 2, Para. 3) is closest in meaning to _________ .
A．forgive
B．squeeze
C．appreciate
D．compromise
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