问题
选择题
—What' s ____ population of China?
—As far as I know China has ____ population of about1. 3 billion.
A. a; the B. a; a C. the; the D. the; a
答案
答案：D
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—As far as I know China has ____ population of about1. 3 billion.
A. a; the B. a; a C. the; the D. the; a
答案：D