完全性房室传导阻滞合并窦房结功能障碍时,应选用()。
A.AAI起搏器
B.VVI起搏器
C.VAT起搏器
D.DDD起搏器
E.VOO起搏器
参考答案:D
—Have you finished your first paper? -- ______ . Just half of it. How about you?
A.Not at all
B.Not likely
C.Not a bit
D.Not yet