单项选择题

During his life time Disraeli pursued the career of ______.

A．a correspondent
B．a politician
C．a novelist
D．a consultant
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Will the Computer Replace Man1. 今天的计算机正在创造奇迹，似乎迟早要代替人类。2. 但计算机只是一种机器，没有完全代替人类的可能性。3. 离开人类，计算机是无所作为的。
单项选择题
A sequence of DNA B. Cells. C. Proteins. D. All of the above.
A sequence of DNA B. Cells. C. Proteins. D. All of the above.
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