静止在湖面上的小船中有两人分别向相反方向以相对于河岸相等的速率水平抛出质量相同的小球，先将甲球向左抛，后将乙球向右抛．水对船的阻力忽略不计，则下列说法正确的是（   ）

读下面的古诗，完成题目。

                                                                                                                                               望岳
                                                                                                                               岱宗夫如何？齐鲁青未了。
                                                                                                                               造化钟神秀，阴阳割昏晓。
                                                                                                                               荡胸生曾云，决眦入归鸟。
                                                                                                                               会当凌绝顶，一览众山小。

As a          Tony promised to help Claire make herself smarter and her home more graceful .