题目内容：
So far there have not been definite data to confirm__________．
A．where fewer people die from heart proble B．whether they have the risk of heart attacheart failure or strok
C．would probably have lower rates of heart diseas
D．how to test a person’s NT—proBNP level in the blood by himsel
E．his heart muscle would he under pressure in some wa
F．that napping is of great benefit to woman to
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答案解析：