对门静脉的叙述正确的是()
A.走形于肝段间
B.其频谱波形不受呼吸影响
C.正常情况下,其血流在整个心动周期持续存在
D.管壁显示不清
E.与肝动脉垂直
参考答案:C
He always differs _________ the manager _________ how to deal with the business.
A.from; over
B.with; for
C.against ; at
D.over ; in
有下列程序: #include<stdio.h> fun(int x) { if(x/2>0) fun(x/2) : printf("%d",x); } main() { fun(6) ;printf("\n");} 程序运行后的输出结果是______。