单选题
Research recently conducted on the side effects of the medication ______ that it should not be prescribed to diabetic patients.
A、
has found
B、
has been found
C、
finds
D、
was finding
【正确答案】
A
【答案解析】
[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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