题目

补全对话,根据对话内容，从方框中选出正确答案补全对话。A: Betty, please look at the photo. 1.          B: No, she is my friend.A: 2.         B: Susan Brown. She likes music. 3.        A: Who’s the man? Is he her father?B: Yes. 4.         He can speak English.A: Is the woman her mother?B: Yes, she is.A: 5.         B: She is a hotel manager.A. She can play the piano(钢琴) and she can sing (唱歌).B. What’s her job?C. Is this your sister?D. He’s a doctor at a hospital.E. What is her name?E. What’s her name?  已知||=3，||=4，(+)×(+3)=33，则与的夹角为              （   ）   A．30°          B．60°               C．120°         D．150°