单项选择题

There are many forms of energy, ______ is atomic energy.

A．one of that
B．one of whom
C．which
D．one of which
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单项选择题
The authorities are discouraging new ______ who want to enter the country as there aren't enough jobs for them.
A．passengers
B．migrants
C．immigrants
D．emigrants
单项选择题
Intelligence is the ability of a person ______ clearly and logically.
A．to think
B．thinking
C．thought
D．being thought
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