第2题: [单项选择]以下有关皮瓣的叙述中,哪项是错误的() A. 皮瓣感觉的恢复首先为温度觉,最后是痛觉 B. 术后72小时内是游离皮瓣最容易发生血管危象的时候 C. 皮瓣设计应比缺损处稍大,以预防皮瓣转移后发生收缩 D. 原则上组织畸形和缺损能用带蒂皮瓣修复就不用游离皮瓣;能用游离皮瓣就不用管状皮瓣 E. 轴型皮瓣只要在血管的长轴内设计,一般可不受长宽比例的限制 参考答案:A
第34题: [单项选择]He can only blame himself for failing the exam. He ______ harder during the year, but he seemed to go out with a different gift every weekend. A. would have worked B. should have worked C. must work D. ought to work 参考答案:B 答案解析:should have done表虚拟语气,本应该做却没做。句意:考试没过,他只能怪自己。这一年他本应该努力学习的,但事实上他每周似乎都和不同的女孩外出。