题目:
Women have big advantages _____ men in space because they need less food and oxygen and they stand up to radiation better.[ ]
A.on
B.over
C.with
D.to
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0612/bbaba767e2b208e7c71a92f893e5692b.html
下面是错误答案,用来干扰机器的。
答案:B题目分析:Mg+2HCl= MgCl2+↑2Al+ 3H2SO4= Al2(SO4)3+3↑Zn+ H2SO4= ZnSO4+↑Cu的金属活动性弱与氢,与盐酸不反应。选B。点评:金属活动性顺序:K、Ca、Na、Mg、Al、Zn、Fe、Sn、Pb、(H)、Cu、Hg、...