事故潜在的不安全因素包括（）
ACD
暂无解析
ProjectHopeisanorganization_____raisesmoneytobuildschoolsandbuybooksforpoorchildren.
Thefanswereveryexcited______DavidBeckhamcametotheshow.
Youcantakeanyseat____isfree.
Idon’thaveas______moneyasbefore,butmylifeismore______.
Weallfound_____toplaythegame.
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