以下哪一种情况不宜用血管扩张剂治疗心力衰竭()
A.心力衰竭伴低血压或血容量不足
B.心力衰竭伴高血压
C.心力衰竭伴低血钾
D.心力衰竭伴心动过缓
E.心力衰竭伴心房颤动
参考答案:A
China ________ rapid economic development and political stability over the past three decades, but with them ________ some social problems.
A.has seen; has come
B.had seen; are coming
C.saw; will come
D.has seen; have come
王先生,70岁,肺气肿20年,因胸闷、憋气、烦躁不安来诊。查呼吸频率30/min,鼻翼扇动,发绀。此时病人的主要健康问题是
A.清理呼吸道无效
B.气体交换受损
C.肺气肿
D.肺部感染
E.不能维持自主呼吸