I□ves□igators learn□d□□hat t□□ grou□ ha□ be□n fri□□ds for □ears,□□ut recen□ly there □ad been □ension am□ng them. R□mors of dis□gr□ements and□□rguments □uring the trip began to sur□a□e, lea□in□ □□□ho□it□es to spe□ulate w□□ther foul play was□involved.□Eac□□□em□er □f the group h□d a different story to tell, a□d□□he inconsi□tenci□□ in□□heir a□coun□s onl□ □□ded to the m□st□r□ □f the m□ssin□ □ine.历史重现:重拾记忆的碎□
创新的教学思路
□h2>技□与创新