It can be learned from the last paragraph that___
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It can be learned from the last paragraph that______.
A. high-altitude babies tend to have high blood pressure in their later life
B. underweight babies have a shorter life span
C. babies born to poor families lack certain hormones before birth
D. newborns in wealthy families have larger heads compared with their bodies
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答案：A
由最后一段“Low birthweight is a risk factor for coronary heart disease. And newborns with a high ratio of head size to body weight are often predisposed to high blood pressure and strokes in later life”可推断，在高海拔地带出生的婴儿在以后的生活中更容易患心脏病，而且头部相对较大的新生儿在以后的生活中更易患高血压及中风，故选A。