问题
选择题
As we know, Mark is a ______ investor (投资者) who does research on market before he buys things[ ]
A. lucky
B. generous
C. patient
D. cautious
答案
答案：D
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As we know, Mark is a ______ investor (投资者) who does research on market before he buys things[ ]
A. lucky
B. generous
C. patient
D. cautious
答案：D