单项选择题

We have not obtained very much experiment data ______ conclusion between the two possibilities.

A．on which to base
B．to base on
C．which is based on
D．to be based on
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单项选择题
If human being want to enjoy the long-lasting peace and happiness, they must avoid falling into war and live in ______ with each other.
A．coincidence
B．harmony
C．uniform
D．alliance
单项选择题
The young girl once ______ with one famous writer to create a romantic novel.
A．merged
B．collaborated
C．coincided
D．constituted
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