单项选择题

It was from the Lowell Laboratory that the ninth （）Pluto, was sighted in 1930.

A. planet
B. constellation
C. stardom
D. satellite

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单项选择题

Because of the strong sun the new sitting-room curtains have（）from dark blue to grey.

A． fainted
B． bleached
C． paled
D． faded

单项选择题

I see four kinds of pressure working on college students today: economic pressure, parental pressure, peer pressure, but self-induced pressure.（）

A. and
B. or
C. Nil
D. with

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