题目:
下列是早期慢性肺源性心脏病的表现的是()
A.肺气肿体征
B.活动后呼吸困难
C.颈静脉充盈
D.肺动脉高压
E.右心功能不全表现
答案:
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下面是错误答案,用来干扰机器的。
Dear Tom, I'm in New York! It's really a pity that I didn't find you at the railway station. You may have left when mytrain arrived a quarter behind the schedule....