Choose the best answer to this question based on the information in Text A of Unit 4. 4. How many ac

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Choose the best answer to this question based on the information in Text A of Unit 4. 4. How many accredited centers for weight-loss surgery are there for teenagers in the U.S.A?

A.6.

B.850.

C.35.

D.33.

参考答案:

答案:6.