题目内容

—Don’t you know your computer has been inflected with viruses?
— Really?No wonder it hasn’t_______ as properly as before.
A.managedB.controlledC.operatedD.appeared
C
operate用作不及物动词, 意思为 “操作,运转”,句意:难怪计算机不如以前运转地正常了。其他选项均与句意不符:manage管理;经营生意;处理事务;control控制;支配;管理;appear出现;显露;好像。
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