【简答题】将五边形ABCDE按相似比2:1放大后,得到五边形A 1 B 1 C 1 D 1 E 1 ,再将原五边形ABCDE按相似比1:2缩小,得到五边形A 2 B 2 C 2 D 2 E 2 ,则五边形A 2 B 2 C 2 D 2 E 2 与五边形A 1 B 1 C 1 D 1 E 1 的相似比为( )
【简答题】VIII. 单词完形(共10题,每题1分,共10分) 81.I don’t mind _______________(apologize) to others if I make a mistake. 82.Be careful, the snake is h________(harm) 83.His experience is very ______________(limit) for th...