Only when your identity has been checked__________.

A．you are allowed to come in

B．You will be allowed to come in

C．will you allow to come in

D．will you be allowed to come in

随着城市发展，城市郊区的农业结构将发生变化。下列土地利用类型在农业用地中的比重

最可能降低的是(　　)

A．稻田

B．鱼塘

C．果园

D．菜地花圃