问题
选择题
There are a lot of signs ________ men are more likely to have heart attacks than women. [ ]
A. indicate
B. to indicate
C. indicated
D. indicating
答案
答案：D
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There are a lot of signs ________ men are more likely to have heart attacks than women. [ ]
A. indicate
B. to indicate
C. indicated
D. indicating
答案：D