问题
选择题
Everyone knows that ______ paper was invented by _______ Chinese.
A．/; the
B．the; a
C．a; /
D．a; a
答案
答案：A
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Everyone knows that ______ paper was invented by _______ Chinese.
A．/; the
B．the; a
C．a; /
D．a; a
答案：A