What can we learn about Dr. Marcy from the passage? How many planets orbiting other stars have the two scientists discovered so

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问题 What can we learn about Dr. Marcy from the passage?
How many planets orbiting other stars have the two scientists discovered so far?

选项 A、100.
B、69.
C、66.
D、65.

答案D

解析根据第四段Since then，the two scientists have discovered 65 of the more than100 planets found orbiting other stars和72题解释可以计算出答案。

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