The Safe Drinking Water Act requires that municipal tap water ______for more than 80 contaminants.

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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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专业英语四级

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The Safe Drinking Water Act requires that municipal tap water ______for more than 80 contaminants.

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Four【C1】badhabits【C2】smoking,drinkingtoomuch,【C3】andpoordiet—can【C4】youby12years,soberingne

Four【C1】badhabits【C2】smoking,drinkingtoomuch,【C3】andpoordiet—can【C4】youby12years,soberingne

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Thefive-yearsurveyinSwedenrevealed______ofunnaturaldeathswereassociatedwithalcohol.

Theyhavedecidedto______physicalpunishmentinalllocalschools.

Amanescapedfromtheprisonlastnight.Itwasalongtime______theguardsdiscoveredwhathadhappened.

You’dbetteradditup.I’mnotgoodat______.

Four【C1】______badhabits【C2】______smoking,drinkingtoomuch,【C3】______andpoordiet—can【C4】______youby12years,soberingne

Four【C1】______badhabits【C2】______smoking,drinkingtoomuch,【C3】______andpoordiet—can【C4】______youby12years,soberingne

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Youshouldknowbetterthan______yourlittlesisterathomebyherself.

Twoyearsago,myparentsstartedcollectingtheirSocialSecuritychecks,therebyconfirmingwhatIhadalwaysthoughtthemto

构成“语言、身体”这两个词的语素的类型是()

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A、槐二醇B、芦丁C、金丝桃苷D、杜鹃素E、槲皮素槐米中治疗出血症的有效成分是

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