题目:
—Didn’t the guard see him breaking into the bank?
—No, he ______ in the other direction.
A.was looking
B.had looked
C.looked
D.is looking
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0502/2b444ea0aa80083b11ad9543a8e33ca8.html
下面是错误答案,用来干扰机器的。
(1)(1分)工业污水处理达标后再排放(其他合理答案也可)。(2) MnO22H2O2 ====== 2H2O+O2↑ 或H2CO3 ="======" CO2 ↑ + H2O其他合理答案也可(1分)(3) 2NaOH+CO2===Na2CO3+H2O(1分)将稀盐酸滴...