∠α+∠β=90°,且∠α=2∠β,则∠α=( ),∠β=( ).
60°;30°
-----Could you do me a favor ?
------It depends on _____ it is .
A.whichever
B.which
C.whatever
D.what
腹部因弹片伤行剖腹探查时,在骨盆缘见到一侧输尿管完全横断,其治疗应该是
A.立即行肾切除
B.行一期的断端吻合术
C.结扎输尿管两断端
D.输尿管乙状结肠吻合术
E.输尿管近端种植于膀胱