----Could you get home at five o’clock?

---- ________I’ll have a meeting at that time .

A．I hope so.

B．Yes,I think so.

C．I’m afraid not

D．I’m afraid so.

下列有关前列腺癌的描述，错误的是（）

A.前列腺癌几乎都发生在外周区

B.Gleason3+4是低分化腺癌

C.大多数为腺癌

D.易浸润周围组织内且发生骨转移

E.癌细胞P504s阳性，基底细胞p63阴性