题目

物体从静止做匀加速直线运动，第5内通过的位移是9m，则() A . 第5s内平均速度是1.8m/s B . 物体的加速度是2m/s2 C . 前3 s内的位移是9m D . 3.5s末的速度是7m/s 答案：B,C,D根据括号中所给的汉语写出单词，使句子意思完整正确，并将答案填写在答题卡标号为 41—45 的相应位置上。【1】The man seems to be in his ______. (四十)【2】This is probably the ______painting I’ve ever seen.(丑陋的)【3】The book that is ______by a little American girl sells well. (写)【4】The boy learns to play the piano every ______evening. (星期二)【5】Animals are our friends, and we can live ______together. (和平地)