- You aren't supposed to smoke in public. It's bad for our health.
- Sorry, I will ______ my cigarette right now.
A:give up
B:put down
C:put out
D:give away
下列人种与其主要分布地区连接正确的是
甲醇(沸点:64.7oC)是一种清洁能源,制取甲醇的成熟的方法有很多,利用CO2和H2甲醇制甲醇的反应方程式如下:
CO2(g)+3H2(g)⇌CH3OH(g)+H2O(g)△H=﹣49.4kJ/mol