第31题: [单项选择]WHO推荐的测量人体皮褶厚度的3个部位是()。 A. 二头肌部、肩胛下缘和髂骨上部 B. 三头肌部、肩胛下缘和脐旁 C. 二头肌部、锁骨上部和肩胛下部 D. 三头肌部、锁骨上部和肩胛下缘 E. 肩胛下缘、髂骨上部和脐旁 参考答案:B 答案解析:人体皮褶厚度测量为肱三头肌部、肩胛下缘和脐旁。
第34题: [单项选择]Differences in positions adopted by oxygen and hydrogen atoms account for variations in the crystalline structure of different forms of ice. A. are caused by B. explain C. derive from D. constitute 参考答案:B 答案解析:are caused by由…引起。explain解释。derive from源自。constitute制订,组成。 account for解释。