【名词&注释】
主动脉(aorta)、三尖瓣(tricuspid valve)、二尖瓣(mitral)、一般现在时(simple present tense)、肺动脉瓣(pulmonary valve)、空白处、一般将来时(simple future tense)
[单选题]《阿细跳月》这部舞蹈是族创作的。（ ）
A. 苗
B. 傣
C. 彝
D. 白
查看答案&解析
举一反三：
[单选题]心脏瓣膜听诊区错误的部位是( )
A. 二尖瓣听诊区在心尖部
B. 主动脉瓣听诊区在胸骨右缘第二肋间及胸骨左缘第3、4肋间
C. 肺动脉瓣听诊区在胸骨左缘第2肋间
D. 三尖瓣听诊区在胸骨下端近剑突处，稍偏右或稍偏左
E. 二尖瓣听诊区在胸骨下端
[单选题]Which of the following statements is true?
A. The author's father built a bonfire on VE Day.
B. The author's father had fought in the First World War.
C. The author's father had fought in the Second World War.
D. The author's father threw two chairs on the fire to keep it going.
[单选题]山风的特点是( )
A. 山坡或山顶上的气流流到山谷中，山风很干燥
B. 山坡或山顶上的气流流到山谷中，山风不干燥
C. 山谷中的气流沿坡上升，山风很干燥
D. 山谷中的气流沿坡上升，山风不干燥
[单选题]Why hasn't he come? ______on time, we will have to put off the trip.
A. If he doesn't come
B. If he won't come
C. If he shouldn't come
D. If he hadn't come
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