all kinds of knowledge ,he was admitted to a key university.
A. Equipped with
B. Having equipped for
C. Armed for
D. Having armed with
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(答案→)A. Equipped with
B. Having equipped for
C. Armed for
D. Having armed with
解析：考查非谓语动词（与主句动作无先后关系）。arm/equip sb. with sth. →be armed/ equipped with；Armed with special guns, knives and brushes, two spacewalking astronauts practiced fixing the spacecraft.