腹部听到连续性血管杂音，常见于下列哪一种病症（）

A.动脉瘤

B.动脉狭窄

C.腹壁静脉严重曲张

D.腹块压迫腹主动脉

E.肝癌压迫肝动脉

—Please _______to return my book by Friday. I'll use it on Saturday.

—No, problem. I'll finish reading it on Thursday.

A．don't forget

B．not to forget

C．not forget

D．forget not to