摘要：10．镁和铝分别跟足量的稀硫酸反应.若要制得相同质量的氢气.则消耗掉镁和铝的质量比是 ····························································································································· [ ] A.8:9 B.4:3 C.16:27 D.3:4

网址：http://m.1010jiajiao.com/timu3_id_98550[举报]