根据下面材料，作答题。
【材料】某小学组织学生春游前，让每位学生家长签一份安全协议书，明确：“在学校组织的春游活动中，如果发生学生伤亡事故，由家长自行负责，学校不承担任何责任。”如果家长不签字，学生就不能参加本次春游。
为什么 ( )查看材料
正确答案及解析
正确答案
解析
BCE。材料中学校与家长签订协议的做法是错误的，学校对未成年学生具有教育、管理和保护义务，不能用协议来免责，这种协议是没有必要、无效且错误的。 BCE正确。 根据下面材料，作答7、8题。
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