一般交换机出厂的默认配置是将端口( )的,在这种状态下端口是不能正常工作的。
参考答案:关闭
A.(A) When we are attending an English language course.
B.(B) When we are watching an interesting TV program.
C.(C) When we are enjoying the murmuring of a brook.
D.(D) When we are listening for a friend’s voice in a crowd.
体外循环后的凝血异常原因可能有()
A.血小板减少
B.血小板功能缺陷
C.凝血因子减少
D.原发性纤溶性亢进
E.鱼精蛋白用量过量