----- Are you used to______ in the north with the old couples?

----- Yes, I am glad to find out that coal is used______ electricity for home use.

A．live; to produce

B．living; to produce

C．to live; produce

D．living; producing

小脑幕切迹疝的典型表现为（）

A.患侧瞳孔先缩小，继之散大

B.病变对侧锥体束征

C.昏迷

D.病变同侧锥体束征

E.生命体征变化