第7题: [单项选择]骨折临床愈合后,骨痂的改造塑形决定于() A. 外固定的牢固性 B. 肢体活动和负重所形成的应力 C. 局部血液供应状况 D. 骨痂形成多少 E. 是否配合治疗 参考答案:B 答案解析:骨的塑形主要受应力影响,是成骨细胞和破骨细胞共同作用的结果,机械应力激发了局部反馈机制,使塑形过程得以进行,根据人体的需要,骨的结构按照力学原则改建为正常骨的结构。
第10题: [单项选择]What did the author mean by" I am not alone" in paragraph 1 A. He and his family all didn’t know how to use the machine. B. His family supported his opinion. C. Many people faced the trouble as he did. D. He was a popular guy. 参考答案:C 答案解析:从I am not alone.后面的句子可以看出,作者还提了很多认为录像机很难操作的人。所以,本题答案应该选C。
第26题: [单项选择]You'll find that the community has ______ great changes since you were here last time. A. submitted B. sustained C. perceived D. undergone 参考答案:D 答案解析:submitted提交;sustained维持;perceived感知;undergone经历,遭受