题型:问答题 简答题 在△ABC和△A1B1C1中,已知:AB=6cm,BC=8cm,AC=11cm,A1B1=18cm,B1C1=24cm,A1C1=33cm.求证:△ABC∽△A1B1C1. 查看答案
题型:问答题 简答题 It took _____ building supplies to construct these energy-saving houses. It took brains, too. [ ]A. other than B. more than C. rather than D. less than 查看答案