题干
The number of the teachers who _________ cars _________ increasing.
A：own; are
B：own; is
C：owns; is
D：owns; are
答案(点此获取答案解析）
B
The number of the teachers who _________ cars _________ increasing.
A：own; are
B：own; is
C：owns; is
D：owns; are
2Z(g) ΔH在不同温度（T1、T2）及压强（P1、P2）下产物Z的物质的量n（Z）与反应时间（t）的关系如下图所示，下列判断正确的是