题目

根据对话内容,从所给的选项中选择合适的句子补全对话。其中两项为多余项。A:Excuse me【1】 I haven’t seen him for weeks. B:Jim’s gone to England.A:Really?【2】B:He went there last week.A:【3】B:Yes.He had lived there for 15 years before he came to China.A:【4】B:He traveled with his friends.A:【5】B:He’ll be away for about two weeks.A:Oh,thank you.I’ll phone him this evening.A.When did he go there?B.Who did he travel with?C.What about our picnic?D.How long will he be away?E.Because she said nothing serious.F.Where is Jim?G.Has he ever been there b如图，△ABC是等腰直角三角形，∠A=90°，点P、Q分别是AB、AC上的一动点，且满足BP=AQ，D是BC的中点 （1）求证：△PDQ是等腰直角三角形； （2）当点P运动到什么位置时，四边形APDQ是正方形，并说明理由。