男，60岁，冠心病史12年，近1周频繁发作胸骨中、上段后压榨性疼痛。2小时前又出现胸骨后疼痛，伴大汗、气短，舌下含服硝酸甘油片0.3mg不能缓解，心脏听诊为心率46次/分，节律规则，可闻及大炮音，急诊做冠状动脉造影，发现右冠状动脉近端完全闭塞，诊断为急性下壁心肌梗死。
患者如做心电图检查，最可能的心律失常表现为（）
A.三度房室阻滞、室性逸搏心律
B.窦性心动过缓
C.窦房阻滞
D.三度房室阻滞、交界性逸搏心律
E.以上均不是
参考答案：D
| 完型填空。 | ||||
| Ann is one of my 1 , She lives in the centre of the city. She has many pets, 2 cats, goldfish and birds. Her favorite pet is a cat. 3 name is Mimi. It likes eating birds. One day, 4 father buys her a parrot (鹦鹉). Mimi sees the parrot and wants 5 if (是否) it is a bird or not. So Mimi comes over 6 the parrot, it wants to eat 7 parrot. The poor parrot is very afraid. When Mimi 8 it, and wants to jump on it, the parrot 9 , "Hello, nice to meet you." Mimi is afraid, and it runs away quickly. It thinks:"That thing can speak. It must 10 a man." | ||||
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