题目

如图，AC⊥BD，垂足为点B，点E为BD上一点，BC＝BE，∠C＝∠AEB，AB＝6 cm，则图中长度为6 cm的线段还有__________． 答案：BD 点拨：由AC⊥BD，垂足为点B，BC＝BE，∠C＝∠AEB，得△ABE≌△DBC， 所以BD＝AB＝6 cm.--____ does it take you to get to school?-- About twenty minutes.A．HowB．How longC．How many timesD．How often