The underlined phrase 'low mortality' in Paragraph 8 could best be replaced by“__________ ”. 查看材料 A.short life span B.low death rate C.low illness rate D.good health condition
A.short B.low C.low D.good
【参考答案】
B 解析：从词义上来看，mortality是“死亡，致命”的意思，因此画线词就是较低死亡率的意思：另外从语境上来......