今年世界气象日的主题是“人与气候”，旨在呼吁国际社会关注气候，促进人与气候和谐发展。对此正确的做法是

①气候是人类赖以生存的自然环境，要保护气候 

②气候影响改变着人类的生产和生活，要把握气候规律 

③气候是经济社会可持续发展的基础资源，要开发利用气候

④气候变化导致极端天气气候事件及灾害频发，要主宰气候

A．①

B．①②

C．①②③

D．①②③④

There is no doubt        the boxes were then put on a train for Konigsberg,        was at that time a German city on the Baltic Sea.

A．whether, which

B．that, where

C．that, that

D．that, which