题干
补全所缺单词。
I'm a teacher. I like my students. I am ____ years old. Today is ____ the second. It's my birthday. The weather is ____ and ____. My favourite month is ____. There is rain and trees are green this month.
I'm a teacher. I like my students. I am ____ years old. Today is ____ the second. It's my birthday. The weather is ____ and ____. My favourite month is ____. There is rain and trees are green this month.
答案(点此获取答案解析）
forty,September,cool,windy,April
2HBr（g）
平衡时Br2(g)的转化率为a；若初始条件相同，绝热下进行上述反应，平衡时Br2(g)的转化率为b。a与b的关系是