题型:填空题 I felt _____ my heart would burst with joy when I heard the news that Chang'e I was sent up successfully to turn around the moon. [ ]A. even ifB. if only C. as if D. only if 查看答案
题型:填空题 一质点自原点开始在x轴上运动,初速度v0>0,加速度a>0。当a值减小至零的过程中,则质点的()A.速度不断减小,位移逐渐增大B.速度和位移都只能逐渐增大到某个定值C.速度逐渐增大,位移趋近于某个定值D.速度趋近于某个定值,位移逐渐增大 查看答案