心排血量减少可见于下列哪几种情况()
A.血容量增多
B.肺动脉高压
C.血容量减少
D.心肌收缩力减少
E.主动脉高压
参考答案:B, C, D, E
62. The crowd the runners on as they started the last lap.
A.called
B.checked
C.cheered
D.Checked
下列程序的输出结果是______。 #include<stdio.h> int(int x,int y,int cp,int dp) { cp=x*x+y*y; dp=x*x-y*y; } main() { int a=1,b=8,c=7,d=9; t(a,b,c,d); printf("%d%d\n",c,d); }