A:to solving; making
B:to solving; made
C:to solve; making
D:to solve; made
—Is this your pen, Sam?
—No, it's Peter's. _______ is in my pencil case.
车厢在水平路面上做匀速直线运动,车厢内一水平桌面上放着质量分别为M和m的两个物体,且M>m。设物体与桌面之间无摩擦,当车突然停止运动时,两个物体在离开桌面之前将( )
一块底和高分别为88米和43米的平行四边形的土地,如果平均每平方米可种植小树苗3棵,那么共可种植____棵小树苗.