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The Safe Drinking Water Act requires that municipal tap water ______for more tha
The Safe Drinking Water Act requires that municipal tap water ______for more tha
游客
2023-11-15
50
管理
问题
The Safe Drinking Water Act requires that municipal tap water ______for more than 80 contaminants.
选项
A、ought to be screened
B、be screened
C、need be screened
D、is to be screened
答案
B
解析
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