[单选题]
13.10: An object is thrown*tsg3 pd (m1pm straight upward. The obje. :h h+1qx;. +falnb gv4ebowdct remains in free fall until it returns to its initial launch point. Which one of the following graphs could represent the d4.1wh.+xfnaq+ b:bgel o;hvvelocity of the object as a function of time during its flight?
