在波澜壮阔的抗震救灾斗争中，我们用理想凝聚力量、用信念铸就坚强、用真情凝结关爱，大力培育和弘扬了万众一心、众志成城、不畏艰险、百折不挠、以人为本、尊重科学的伟大抗震救灾精神。我们要在全党全社会大力弘扬伟大的抗震救灾精神，使之转化为艰苦奋斗、重建家园的坚强意志，转化为推动经济社会又好又快发展的强大力量。
请回答：
（1）结合材料，运用《文化生活》知识，简述抗震救灾精神与中 * * 精神之间的关系。
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（2）结合材料说明，为什么要弘扬和培育抗震救灾精神？
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