Research recently conducted on the side effects of the medication _

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

参考答案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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单选题 Market research shows that few consumers actually __________prices before selecting their groceries in the store.

A．renew
B．submit
C．compare
D．collect

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单选题 By__________ a cheaper material for the steel in our products, we can greatly reduce manufacturing costs.

A．substituting
B．replacing
C．alternating
D．displacing

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单选题 If your computer__________ experience any problems within the warranty period, you can take it to an authorized repair center free of charge.

A．will
B．should
C．had
D．would

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