题干
—Excuse me, is this ________ iPad mini?
—No, it isn't. ________is at home.
A：your; Mine
B：your; My
C：yours; My
D：yours; Mine
答案(点此获取答案解析）
A
—Excuse me, is this ________ iPad mini?
—No, it isn't. ________is at home.
A：your; Mine
B：your; My
C：yours; My
D：yours; Mine
CO(g)＋H2(g)在一可变容积的密闭容器中进行，下列条件的改变对其反应速率几乎无影响的是( )