单项选择题

In 1984, President Ronald Reagan proposed that the United States construct a launch laboratory for a new era of space exploration.

A．probing
B．revenge
C．invasion
D．expansion
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单项选择题
She was so obstinate that she wouldn't adjust her opinions.
A．inflexible
B．alert
C．wise
D．talented
单项选择题
In ancient Egyptian paintings, royal figures were differentiated by making them several times larger than others.
A．distinguished
B．estranged
C．deferred
D．enlarged
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