除病史和临床表现外,以下哪一项是区分静脉性和淋巴性水肿的最有效手段( )
A.CTB.MRIC.血管造影D.淋巴管造影E.放射性核素淋巴造影
参考答案:C
Arriving home,the boy told his parents about all the________which occurred in his dormitory.
A.occasions
B.incidents
C.matters
D.accidents
关于海陆分布的说法,正确的是( )
①北半球比南半球陆地多 ②北半球陆地面积大于海洋
③东半球比西半球陆地多 ④东半球陆地面积比海洋面积大
A.①④
B.②④
C.①③
D.②③