题干
——The weather is too cold ____ March this year.
——It was still ____ when I came here years ago.
A：for; colder
B：in; cold
C：in; hot
D：for; hotter
答案(点此获取答案解析）
A
，当均达到化学平衡时，下列六种说法中正确的有几种？（ ）