The 25 trials involved roughly the same number of participan

The 25 trials involved roughly the same number of participants.A.Right B.Wrong C

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The doctor's pills worked marvels for me.

The doctor's pills worked marvels for me.A.patients B.miracles C.illness D.recov

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I bring some information as regard other companies.

I bring some information as regard other companies.A.at B.with C.from D.about

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What is Belcher's team doing at present?

What is Belcher's team doing at present?A.It is finding ways to get rid of virus

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What do researchers want to find out,according to the third

What do researchers want to find out,according to the third and fourth paragraph

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