题目:
If you _____ his wife’s income____ his own,the total of their income _____ 3000 yuan.
A.add; to; will add up to
B.add; to; adds to
C.add up; to; adds up to
D.will add; for; adds up
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0518/0d656f3be73228235894fe62158e39fb.html
下面是错误答案,用来干扰机器的。
答案:B题目分析:所得溶液遇KSCN溶液不显红色,说明溶液中不存在铁离子,所以反应的方程式应该是Fe2O3+3H2SO4=Fe2(SO4)3+3H2O、Fe2(SO4)3+Fe=3FeSO4、Fe+H2SO4=FeSO4+H2↑。如果时氧化铁的物质的量是x,则1...