男性,40岁,突感心悸1周,心率120次/分,节律不整,心电图示"房颤"。要转为窦性心律治疗首选()
A.异搏定
B.阿替洛尔
C.西地兰
D.心律平
E.氟卡尼
参考答案:E
—I've read another book this week.
—Well, maybe _____ is not how much you read but what you read that counts. [ ]
A. this
B. that
C. there
D. it
“信度”的概念及内涵是什么?