3D为三极管的制作材料、类型是()。
A、锗、PNP型
B、硅、PNP型
C、硅、NPN型
D、锗、NPN型
参考答案:C
女性,45岁,直肠低分化腺癌,距肛门7cm,术中见肿块巨大,与盆腔及骶部固定,最适宜的手术选择为()
A.Miles手术
B.Dixon手术
C.拉下式直肠癌手术
D.Hartmann手术
E.仅作乙状结肠造口术
The guy is always running ______ the other cars on the road, unfortunately he ran his car ______ a tree.
A.after; into
B.after; out
C.away; into
D.into; into