第20题: [单项选择]肩关节脱位常见的血管损伤是() A. 肱动脉 B. 腋动脉 C. 旋肱前动脉 D. 旋肱后动脉 E. 肩胛下动脉 参考答案:B
第21题: [单项选择]{{I}}Questions 14-17 are based on the following dialogue.{{/I}}Why doesn’ t Tom like his job A. He doesn’t earn very much money. B. He has to work too many hours. C. He doesn’ t have time for lunch. D. He sometimes has to work in bad weather. 参考答案:D