Research recently conducted on the side effects of the medication __________ ...

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问题 Research recently conducted on the side effects of the medication __________ that it should not be prescribed to diabetic patients.
选项 A.has found B.has been found C.finds D.was finding
答案 A
解析 此题为选择动词的正确形态的问题。句子表示“最近的研究确定了……”,同时.主语“research”和动词“find”为主动关系,故选A。

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