题目

 At school we take excise for an hour every day to _____. A. look after ourselves    B. build ourselves up C. show ourselves off      D. take care of ourselves 答案：B读图，分析回答： （1）从图中提供的信息分析，舟山渔场发展海洋渔业的有利条件。                                                                                                                                                                                                                                                                                                                              （2）结合已学的气候和地形知识分析：A（长芦盐场）、B（布袋盐场）两个盐场的成因有什么不同？                                                                                                                                                                                                                                                                                                                              （3）盐是制碱的原料，请说说天津发展制碱的有利条件吗？