The new computer virus______, the system was restored to its normal operation.(北

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问题 The new computer virus______, the system was restored to its normal operation.(北京大学2005年试题)

选项 A、having removed
B、being removed
C、had been removed
D、was removed

答案 B

解析在句子中the new computer virus being removed是独立主格结构用被动态表示，本题空格处是说新的计算机病毒被清除。因此B项为正确答案。

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