问题
选择题
What my friend needs is ______ book, which contains _______ ABC of computers.
A, a; / B, the; / C, the; an D, a; the
答案
答案：D
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What my friend needs is ______ book, which contains _______ ABC of computers.
A, a; / B, the; / C, the; an D, a; the
答案：D