问题 不定项选择

某人把质量为0.1kg的一块小石头从距地面为5m的高处水平抛出,抛出时的初速度大小为10m/s,则当石头着地时,其速度大小约为(g取10m/s2) [ ]

A.14m/s

B.12m/s

C.28m/s

D.20m/s

答案

答案:A

问答题

在解放战争结束多年以后,蒋介石和毛 * * 两人对各自的失败和胜利分别做了总结。

       蒋介石:国军最后四年的崩溃,是因为国军无主义、无组织、无纪律、无训练、无灵魂、无根基。不是被共军打败,而是我们自己打倒了自己。

       毛 * * :我们取得胜利的三大法宝是:统一战线、武装斗争、党的建设。看了他们两人的总结,结合人民解放战争的过程,你认为人民解放军能够迅速推翻国民党反动 * * 的原因是什么?(至少5点)

                                                                                                                                                            

                                                                                                                                                            

                                                                                                                                                            

                                                                                                                                                            

                                                                                                                                                            

多项选择题