注 :所有计算中一律取g=1 0N/kg　　一、在下列每个题目中选出一个符合题意的答案 ,把答案前的字母代号填在题后的括号内(每小题 2分 ,共 2 0分 )1 .两辆汽车并排停在平直的公路上 ,甲车上的人发现车外的树木在向北移动 ,同时乙车上的人通过窗口没有发现甲车在运动。如果都以地 Note: All calculations should be taken g = 1 0N/kg. 1. Select an answer that matches the question in each of the following questions. Put the letter code before the answer in the parentheses after the question (2 points for each question, Total 20 points) 1. Two cars parked side by side on a straight road. People on the car discovered that the trees outside the car were moving to the north. At the same time, people on the second car did not find a car moving through the window. If they are all