[单选题] 提问人:匿名网友 提问时间:2021-08-22

Researchers will collect all the followings EXCEPT _________.


A .genetic samples from people in the study
B .biological samples from people in the study
C .samples from the homes of the women and their babies
D .samples of air and water from hospitals

提问人:匿名网友 提问时间:2021-08-22

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