题目

For Rent(出租)A big apartment for a family of three people $900 a month. There are three bedrooms and a bathroom. It is on the fourth floor. Call Mrs Brown. Tel: (00441223)8355-2147. WantedLooking for a quiet single room under $140 each month. It must be clean and quiet. Please call Dick at 159-5912-5856. LostI lost my school ID card. I must find it. Name: JackNumber: 350198199812102500Please call (00441223)8838-7166. FoundA red purse with some money and keys. Come to Room 402 from 7: 00 p. m. — 9: 00 p. m. or call Jim at(00441223)8378-3021.【1】If you find an ID card, you can call __如图，点E，F在BC上，BE＝CF，∠A＝∠D ，∠B＝∠C．求证：△ABF≌△DCE.