Northern Ireland, England and Scotland have different educational and legal systems _____ different football teams for competitions like the World Cup!

A．as if

B．as to

C．as well as

D．as for

应与肝内胆管结石作鉴别的常有：①肝内钙化灶；②肝圆韧带；③胆道气体；④门静脉血栓（）

A.①②③

B.①③

C.②④

D.④

E.①②③④