题目

Once a decision has been made, all of us should ______ it. A . direct to B . stick to C . lead to D . refer to 答案：B以下估测与实际情况相符的是（   ）                                A．人正常步行的平均速度是10m/s   B．你手中物理课本的长度约为2.6cm C．托起一个鸡蛋的力约为0.5N      D．洗澡水的温度大约是80℃