题干
It was time to go home, Martin______his rain coat and went out
A：wore
B：put on
C：was in
D：puts on
答案(点此获取答案解析）
B
It was time to go home, Martin______his rain coat and went out
A：wore
B：put on
C：was in
D：puts on
的最大值为（ ）
2NO+O2在恒容密闭容器中反应，可以作为达到平衡状态的标志是
