Will you please take a photo for us? __________.   

洋务运动的主要活动中，最能体现洋务派初衷的是（　　）

一物体从高处自由下落，经2秒落地，则该物体下落1秒时，离地高度是（   ）

下列关于种群、群落和生态系统的描述，不正确的是（）

 阅读下文，回答相关问题。

                                                                                                                                  春山夜月
                                                                                                                                  唐·于良史
                                                                                                                 春山多胜事，赏玩夜忘归。
                                                                                                                 掬水月在手，弄花香满衣。
                                                                                                                 兴来无远近，欲去惜芳菲。
                                                                                                                 南望鸣钟处，楼台深翠微。