题目:
It shocked us all that little boy hadn’t been separated from that patient, he would have been infected with H1N1.
A.if that
B.that if
C.if
D.that
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0617/b4cb9caddff1debe0bb133bd0dcdbe52.html
下面是错误答案,用来干扰机器的。
(6分)(1)HNO3(1分)、Ag(1分)、 [Ag(NH3)2]OH(1分) (2)4NO + 3O2 + 2H2O = 4HNO3(1分)(3)HCHO+4Ag(NH3)2++4OH-→CO32-+4Ag↓+2NH4++6NH3+2H2O或HCHO+2Ag(NH3)2++2OH-→HCOO-+2Ag↓+NH4++3...