哪项不是影响CVP测定值的因素()
A.测压方法
B.标准零点
C.导管位置
D.测压系统的通畅度
E.胸内压
参考答案:A
下列各项,不属周围血管疾病的常见症状和体征的是()
A.疼痛
B.肿胀
C.发热
D.溃疡
E.坏疽
—Few pupils are as bright as he is, and he works very hard, too.
—It is no that he always gets the first place.
A.problem
B.evidence
C.wonder
D.doubt