下列不属于心房颤动临床特点的是()
A．心排血量下降25%
B．仅见于器质性心脏病
C．第一心音强弱不等
D．心律绝对不规则
E．短绌脉
参考答案：B
They gave us a detailed account of what was going on in the remote villages. Which of the following can replace the underlined word? [ ]
A. expression
B. description
C. conversation
D. statement
筒述轴温检测仪的主要技术参数和功能？
