下列哪种物质在休克发病机制中可能起重要作用,使纳洛酮能对抗休克()
A.血栓素A2
B.前列腺素E
C.内啡肽
D.儿茶酚胺
E.促肾上腺皮质激素释放激素
参考答案:C
If you are feeling , you should share problems with your friends or your family members.
A.excited
B.stressed
C.relaxed
D.tired
下面程序的输出结果为 【8】 。 # include <iostream.h> void main( ) { int num=0,i=8; do { i --; num++; } while(--i); cout << num << endl; }