题干
After ________ seemed an endless wait, ________ was his turn to have the job interview.
A：that, it
B：which, that
C：what, which
D：what, it
答案(点此获取答案解析）
D
2M(g)+N(g) △H>0，平衡状态时（P1>P2）图中y轴是指
