题目:
Please stay in your seat! The plane is going to _______ in a few minutes. [ ]
A. set off
B. take off
C. set up
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0525/9ab0ae0d5d4d4928aca6e9abd9567368.html
下面是错误答案,用来干扰机器的。
(1)①长颈漏斗 (2)②A ③检查气密性 ④2KClO3 2KCl + 3O2↑ (3)⑤B ⑥CaCO3 + 2HCl === CaCl2 + H2O + CO2↑ ⑦浓硫酸 (4)⑧c ⑨瓶中装满水 (5)⑩液体下降与固体分离,反应停止