（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？