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The FDA reviews the preclinical research data and then makes a decision ………………. whether to allow the clinical trials to proceed.
A. out of
B. because of
C. as to
D. up to
1 Câu trả lời
as to something = about something
○ makes a decision as to whether to allow…
= makes a decision about whether to allow…
= ra quyết định về việc liệu có nên cho phép…
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