问题
单项选择题 A1型题
损伤性血胸，胸腔穿刺抽出不凝血主要因为（）
A.出血量少
B.心脏、肺和膈肌的去纤维蛋白作用
C.胸腔内负压
D.凝血功能障碍
E.胸壁运动
答案
参考答案：B
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损伤性血胸，胸腔穿刺抽出不凝血主要因为（）
A.出血量少
B.心脏、肺和膈肌的去纤维蛋白作用
C.胸腔内负压
D.凝血功能障碍
E.胸壁运动
参考答案：B
| Look and choose the proper sentences. 看图，选择合适的句子。 |
 1. ( ) |  2. ( ) |  3. ( ) |
 4. ( ) |  5. ( ) |  6. ( ) |
| A. An airplane is fast. B. — Mum, may I go on a trip to Beijing? — OK, Li Ming! You work hard in school. You may go. C. We go on a trip by train. D. Jenny and Danny arrive in Shijiazhuang on January 19th. E. I love to go on trips. F. Danny and Jenny leave Canada on January 18th. |