题目

阅读下列短文，根据短文内容，从短文后各题所给的A、B、C、D四个选项中，选择最佳选项。 Victoria Middle School Report Student: Jenny Jones SubjectGradeComments MathsBGood work all year. ChineseADoes well in this subject.                        EnglishA+Very interested and very good job! ScienceCA little weak in this subject.                     ComputerDNot really interested and need improve. SportsACaptain of girls’ soccer team, and on basketball team. Total GradeB Date: 20/6/05              �关于匀变速直线运动的研究，下列说法正确的是（　　）A．做自由下落运动的物体，刚开始运动运动时的速度和加速度都为零B．如果物体在相等位移内速度的变化相同，则物体做匀变速直线运动C．如果物体在相等时间内加速度的变化相同，则物体一定做匀变速直线运动D．做匀变速直线运动的物体，在连续相等时间内位移的变化一定相同