题目内容

What is the conversation about?

A. Having a birthday party.
B. Friends getting together.
C. Buying a skirt.

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What gift does Mary receive from her grandmother?

A lovely dog.
B. A new shirt.
C. A fine skirt.

What does Mary not do according to the conversation?

A. Give gifts.
B. Make a wish.
C. Blow out the candles.

慢性肺源性心脏病最常见的病因是（）

A. 支气管扩张症
B. COPD
C. 肺小动脉栓塞
D. Ⅳ型肺结核
E. 严重的胸廓畸形

引起肺血管阻力增加的解剖学因素不包括（）

A. 肺血管炎症
B. 缺氧
C. 肺泡毛细血管管腔狭窄或闭塞
D. 肺血管重塑
E. 血栓形成