问题
单项选择题 A1/A2型题
诊断主动脉瓣关闭不全的重要体征是（）
A.心尖区Austin-Flint杂音
B.水冲脉
C.主动脉瓣区舒张期杂音
D.心尖区第一心音减弱
E.靴形心
答案
参考答案：C
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诊断主动脉瓣关闭不全的重要体征是（）
A.心尖区Austin-Flint杂音
B.水冲脉
C.主动脉瓣区舒张期杂音
D.心尖区第一心音减弱
E.靴形心
参考答案：C
| 用方框内所给单词的适当形式填空。 | |
2. Can you come and basketball with me this afternoon? 3. -What about having a picnic in the park on weekends? -I'm really sorry. I have to for my math test. 4. Thank you for your ____ to go to the movies next Sunday. 5. Many ____come to visit China every year. |