--- Have you got any books on English grammar? I’d like to borrow         .

--- Yes, here you are. But you must return it by Friday.

A．it

B．one

C．some

D．any

关于苯的下列说法中不正确的是（     ）

A．组成苯的12个原子在同一平面上

B．苯环中6个碳碳键键长完全相同

C．苯环中碳碳键的键能介于C－C和C＝C之间

D．苯只能发生取代反应