问题描述：
一道(SAT) 语法 句子优化题!
A healthy economy can be measured not only by the growth of business but (it has a) psychological effect on people.
a.it has a
b.as well in the
c.also by the
d.also the
e.in the way of having a
请问答案是什么?为什么?
A healthy economy can be measured not only by the growth of business but (it has a) psychological effect on people.
a.it has a
b.as well in the
c.also by the
d.also the
e.in the way of having a
请问答案是什么?为什么?
问题解答：
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