今年我们邻国尼泊尔发生大地震，我们也应掌握一些防震知识，下列做法不正确的是（  ）

Photo­taking ____ ____ ____ in the museum..

水的密度是1.0×10³千克/米³，它表示____ 

阅读下面这首古诗，回答两题。
                                                                                                                                              客发笤溪^①
                                                                                                                                                 清 叶燮
                                                                                                                            客心如水水如愁，容易归帆赴疾流。
                                                                                                                            忽讶船窗送吴语，故山月已挂船头。   
      【注】①笤溪是流经诗人家乡吴兴的一条河流。