下列适宜实施颈椎牵引的是:()
A.颈椎韧带不稳
B.寰枢关节半脱位并有脊髓受压症状
C.急性“挥鞭样”损伤
D.椎基底动脉供血不足
E.慢性颈背痛
A.颈椎韧带不稳
B.寰枢关节半脱位并有脊髓受压症状
C.急性“挥鞭样”损伤
D.椎基底动脉供血不足
E.慢性颈背痛
在横断层面上,颈段椎管前后径的最宽处位于
A.寰椎
B.枢椎
C.第3颈椎
D.第5颈椎
E.隆椎
下面程序的输出是【 】。 main() { enum em{em1=3,em2=1,em3}; char*aa[]={"AA","BB","CC","DD"}; printf("%s%s%s\n",aa[em1],aa[em2],aa[em3]); }
下面程序的输出是【 】 main() {enum em{eml=3,em2=1,em3}; char*aa[]={"AA,"BB","CC","DD"} printf("%s%s%\n",aa[em1],aa[em2],aa[em3]); }
下面程序的输出是【 】。 main() {enum em{em1=3,em2=l,em3}; char*aa[]={"AA","BB","CC","DD"}; printf("%s%s\n",aa[eml],aa[em2],aa[em3]); }
下面程序的输出是【 】。 main() {enum em{em1=3,em2=1,em3}; char*aa[]={"AA"m,"BB","CC:,"DD"}; printf("%s%s%s\n,aa[em1],aa[em2],aa[em3]); }