单项选择题

At any moment someone may discover how to ______ cancer which is a big problem human beings face.

A．heal
B．recover
C．cure
D．treat
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单项选择题
He has little ______ of those who always speak a lot, but never stick to the point.
A．preference
B．tolerance
C．passion
D．fancy
单项选择题
Many non-governmental colleges have been ______ in recent years which allow more students to have a chance to go to college.
A．established
B．constructed
C．erected
D．built
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