Believe it or not. My grandpa, 95 years old now, ______World WarⅡ. [ ]

A. went across

B. passed through

C. went through

D. went by

急性心肌梗塞时，心前区出现粗造的收缩期杂音，同时测定右心室血氧饱和度增高，考虑是什麽原因：（）

A.肺淤血

B.左心衰

C.室间隔穿孔

D. * * 肌缺血坏死

E.右心梗塞