The computer,        help we human beings have stepped into the information age, should be regarded as one of the most important inventions in the 20th century.

A．which B．whose C．with its D．with whose

D

解析試題分析：在電腦的幫助下人類進入了信息時代。如選擇C項，兩個句子缺少連詞。D項引導點語從句。with whose help =" with" the help of the computer. 故D項正確。
考點：定語從句。

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