题目

如图，已知在△ABC中，D是边BC的中点，点E在边BA的延长线上，AE=AB， ，那么 =． 答案：【1】2 {#mathml#}a→{#/mathml#} ﹣ {#mathml#}12{#/mathml#} {#mathml#}b→{#/mathml#}阅读理解 　　　　Every year students in many countries learn English. Some of these students are children. Others are young people. Some learn 　　at school, others teach themselves. Why do all these people want to learn English? 　　　　Many boys and girls learn English at school because it is one of their subjects. Many people learn English because it is useful 　　in their work. Some young people learn English for their higher studies because some of their books are written in English at 　　college or university. Other people learn English because they want to read newspapers or magazines in English. 　　判断下列句子是否符合短文内容，符合的用“T”表示，不符合的用“F”表示。 　　1. Every student in many countries learns English. 　　　　　　　　　　　　　　　　　　　　　　　　 (　　) 　　2. People can learn English only at school. 　　 (　　) 　　3. Children learn English because they all like it. 　　　　　　　　　　　　　　　　　　　　　　　　 (　　) 　　4. English is useful （有用的） in people's work and life. 　　　　　　　　　　　　　　　　　　　　　　　　 (　　) 　　5. It's difficult to answer why so many people learn English. 　　　　　　　　　　　　　　　　　　　　　　　　 (　　)