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题库 / GmatLaCourse-SC-10
The commission’s office of compliance, inspections, and investigations plans to intensify its scrutiny of stock analysts to investigate not only whether research is an independent function at brokerage firms, but also whether conflicts result when analysts own the stocks they write about or when they are paid for their work by a firm’s investment banking division.
to investigate not only whether research is an independent function at brokerage firms, but also whether conflicts result when analysts own the stocks they write about or when they are
to investigate not only whether research is an independent function at brokerage firms, but also if conflicts result when analysts own the stocks they write about or they are
not only to investigate whether or not research is an independent function at brokerage firms, but also whether conflicts result when analysts own the stocks they write about or are
略
略
题目分析：
本题中具有平行制造者not only…but also…，它们连接的两者需要在语法上保持平行，答案为(A)。
A和B里面还有一个差异是Whether 和 if。 所以这里应该是whether 和if 两者都可用呢？还是说因为平行结构，所以whether 会更好？
用whether是更好的~
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