i am fain ,thanks and you

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i am fain ,thanks and you
请告诉我三价铬和六价铬的毒性及废水处理..THANKSA

钡盐沉淀法仅限于含六价铬废水处理,采用的沉淀剂有BaCO3、BaCl2和BaS等,生成铬酸钡(BaCrO4).铬酸钡的溶度积Ksp=1.2×10-10.钡盐法处理含铬废水要准确控制PH值.铬酸钡的溶解

请问空上填什么英语A:I like your pantsB:ThanksA:Are they new?B:Yes,I l

thoughitisold,itsuitsyouverymuch尽管他是旧衣服但很适合你

Would you like( )milk?no,thanksA.any more B.more any C.some

Cwouldyoulike表请求用somesomemore再多些不明白的再问哟,请及时采纳,多谢!