It is convenient for people to work by subway. It’s said that The Line 4 subway in Chengdu _______by the time of 2018.

A．will be built

B．would be built

C．will have been built

D．would have been built

男，70岁，既往高血压病史。自诉近1个月出现突发的下肢酸痛乏力，于步行中出现，稍事休息后能继续行走。

可能出现的步态是()

A.慌张步态

B.共济失调步态

C.跨阈步态

D.蹒跚步态

E.间歇性跛行