阿优米酱
解：连接AA′，∵点M是线段AC、线段A′C′的中点，AC=2，∴AM=MC=A′M=MC′=1，∵∠MA′C=30°，∴∠MCA′=∠MA′C=30°，∴∠MCB′=180°-30°=150°，∴∠C′MC=360°-（∠MCB′+∠B′+∠C′）=180°-（150°+60°+90°）=60°，∴∠AMA′=∠C′MC=60°，∴△AA′M是等边三角形，∴AA′=AM=1．故答案为：1．
stonegossard
inthewestofchina。根据查询相关公开信息显示，whereisthecity太原，意思是那个太原在哪儿，可以回答inthewestofchina。英语，是一种西日耳曼语支，最早被中世纪的英国使用，并因其广阔的殖民地而成为世界使用面积最广的语言。
Vickey小姐
1-60：bcbca babcc cbbaa babca babbb bccba cacbb ccabc abbac bacbc cbbcb bacab61-65 four math\maths skating sailed parents66-70 By using their mobile phones..(其他略） (They can learn)many fresh and interesting things. Yes,they can. Because microblogging coule be a waste of time.(其他略） It can become a window for parents to understand their children.(其他略）71-75 DEBAF76-80 music words my rushed happily worker was thrown more to pay will feel作文略
优质英语培训问答知识库
