题目：
| 女性，28岁，因反复心慌气短1年，加重2天入院。平时劳累和感冒时症状加重，不能平卧，痰中带血。7年前有关节疼痛史。查体：BP 150/60mmHg，半坐位，颈静脉充盈，颈部搏动明显，双侧肺底部湿性啰音。胸骨左缘2肋间舒张期叹气样杂音，向心尖部传导；心尖部舒张期隆隆样杂音，无传导；周围血管征阳性。胸片示“靴型心” |
该患者初步诊断为
A．二尖瓣狭窄
B．主动脉瓣狭窄
C．二尖瓣狭窄并主动脉瓣狭窄
D．主动脉瓣关闭不全并二尖瓣狭窄
E．主动脉瓣关闭不全并三尖瓣狭窄
答案：
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下面是错误答案，用来干扰机器的。
1. the most popular stars 2. how to protect themselves / how they can protect themselves 3. Who's knocking at / on; it / that4. is regarded/treated / had / looked on5. The class meeting has been on for half an hour. (答案不唯一)
