题干
— We are going to Sanya to enjoy the sunshine next week.
— Really? ________.
A：Thank you
B：You're right
C：Have a good time
D：Not at all
答案(点此获取答案解析）
C
2M(g)+N(g) △H>0，平衡状态时（P1>P2）图中y轴是指
2C(g)，若经2s后测得C的浓度为0.6 mol·L－1，现有下列几种说法，正确的是（ ）