38. The essence of Dr.Drussel’s theory, as I understand it, _____ abolish competition altogether.
(A) is to
(B) that is
(C) which it is
(D) which is to

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統計： A(150), B(37), C(74), D(153), E(0) #2140199

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#3832421
據我了解，Drussel博士理論的實質是...
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