皮皮学，免费搜题
登录
搜题
【简答题】
如图所示，在△ABC中，已知AB=AC，延长AB到D，使BD=AB，延长AC到E，使CE=AC，连结CD、BE，求证：CD=BE。
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】听力原文：W: I want to register for this mathematics course. M: I'm sorry registration has dosed. W: Closed? The clerk told me I could come back and register any time during the first week of classes. M: W...
A.
She doesn't want to pay the late fee.
B.
She was given incorrect information.
C.
She can't afford to pay her tuition.
D.
She didn't want to pay her tuition.
【简答题】什么是一次能源和二次能源？
【多选题】该培训专员他具体做了哪些事情?完成了哪些工作?
A.
开展培训会议
B.
了解每个部门的培训需求
C.
沟通安排培训事宜（时间、授课地点、联系培训专家）
D.
制定培训计划
E.
进行培训总结（了解培训反馈与效果）
【简答题】请指出下面的能源中哪些是一次能源和二次能源: 油田气、林木秸秆、煤油、渣油、沼气、核燃料、地热能、液化石油气、重油、人造汽油。
【单选题】听力原文：W: I want to register for this mathematics course. M: I'm sorry registration has closed. W: Closed? The clerk told me I could come back and register any time during the first week of classes. M: ...
A.
She doesn't want to pay the late fee.
B.
She was given incorrect information.
C.
She can't afford to pay her tuition.
D.
She didn't pass her mathematics class last semester.
相关题目：