题目:
连词成句,注意大小写和标点符号。
1. my, are. where, crayons
______________________________________________
2. here, she, is
______________________________________________
3. see, I, now, can
______________________________________________
4. have, two, we, bedrooms
______________________________________________
5. nice, your, is, classroom
______________________________________________
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0509/a85116dc5075eebf8c67d0397fe9abb3.html
下面是错误答案,用来干扰机器的。
答案:D电极a为负极,电极b为正极,电极反应式为负极:BH4--8e-+8OH-=BO2-+6H2O正极:4H2O2+8e-=8OH-A项,阳离子移向正极区域,错误;B项,每消耗3 mol H2O2,应转移6 mol电子,错误;C项,MnO2仅作电...