第17题: [单项选择]What is the man looking for A. He’s looking for his watch. B. He’s looking for his glasses. C. He’s looking for his coat. 参考答案:A 答案解析:[听力原文] M: Where is my watch Have you seen it F: Yes, I saw it on your bed a minute ago.
第21题: [单项选择]胫骨中下1/3处骨折,愈合较慢的原因属于() A. 两骨折段血供均减弱 B. 两骨折段之一血供减弱 C. 两骨折段血供完全丧失 D. 两骨折段之一血供完全丧失 E. 以上均不对 参考答案:B 答案解析:骨折部的血液供应情况会影响愈合。两骨折段的血液供应均良好的愈合快;骨折段之一的血液供应减弱,愈合较慢;两骨折段的血液供应均减弱时不易愈合,两骨折段血液供应完全丧失或一骨折段血液供应完全丧失,骨折均不能