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问题 单项选择题 案例分析题

患儿，5岁，出现活动后心悸、气短。胸骨左缘2、3肋间可听及连续性机器样杂音，二维超声见肺动脉分叉处与降主动脉间一异常通道。

超声探查的最佳切面为（）。

A.心尖四腔切面

B.主动脉根部短轴切面

C.肋下四腔切面

D.左室长轴切面

E.心尖两腔切面

答案

参考答案：B

选择题

China won 100 medals in the Beijing Olympic Games, which is almost _____they won at the Sydney Olympic Games.

A．twice as many as

B．as many as twice

C．as much as twice

D．twice as much as
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选择题
Many of them turned a deaf ear to her advice, _____ they knew it to be valuable.

A. even though
B. now that
C. as if
D. as long as
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