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注 :所有计算中一律取g=1 0N/kg 一、选择题 (每小题 3分 ,共 45分 )请在下列每个题目中选出一个符合题意的答案 ,将答案前的字母填在题后的括号内。1 .你身体上最接近 1 0mm长度的部位是 :( )A .手臂的长度 B .头发的直径C .中指的长度 D .指甲的宽度2 .某同学用毫米刻
Note: All calculations will be g = 1 0N/kg. 1. Multiple choice questions (3 points for each question, total 45 points) Please select one of the following answers to each question and fill in the letters before the answer. In the parenthesis after the question. 1. The part of your body closest to the 100mm length is: () A. The length of the arm B. The diameter of the hair C. The length of the middle finger D. The width of the nail 2. A student uses a millimeter