Young people usually ______ sports heroes,like Michael Jordan and Tiger Woods,who are really amazing.

A．live up to

B．go up to

C．look up to

D．play up to

缩窄性心包炎的特征性X线征象是（）

A.心影近似三角形

B.两心缘僵直，分界不清，伴胸膜炎改变

C.心脏搏动减弱，消失

D.上腔静脉扩张

E.心包壳状钙化