18. Many researchers support using animals for testing medicines for humans, but some believe it is not
appropriate to use animals for _____ experiments.
(A) such as
(B) such that
(C) such which
(D) such
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統計: A(128), B(29), C(10), D(156), E(0) #3105306
統計: A(128), B(29), C(10), D(156), E(0) #3105306