单选题
The phrase "this relationship"( in Line 3, Para. 5 )refers to the connection between ______and the incidence of heart disease.
A、
the amount of fish eaten
B、
regular fish-eating
C、
the kind of fish eaten
D、
people of different regions
【正确答案】
B
【答案解析】
[解析] 全文都在讲述吃鱼有利于预防心脏疾病的发生。容易选出正确答案B。
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