衰____
娟____
侨____
玷____
哀____
绢____
桥____
站____
如图,已知矩形ABCD沿着直线BD折叠,使点C落在C′处,BC′交AD于E,AD=8,AB=4,则DE的长为____ .
Our lessons
We have Chinese,Maths,English and Science on Monday morning.In the afternoon,we have PE and Music.On Tuesday morning we have Maths,English,Chinese and Art.In the afternoon,we have Science and Music.On Wednesday morning,we have English,Chinese,Maths and History(历史).In the afternoon,we have Computer and Art.
Weekdays
Monday
Tuesday
Wednesday
In the morning
Chinese
____
English
Maths
In the afternoon
Science
Computer
Music
小杨学了“平面镜成像”和“凸透镜成像”后,总结出关于实像和虚像的一些特点,其中错误的是()
①符合中国外交政策的基本目标和中美人民的共同愿望
②彰显中美是战略互信、相互支持、相互帮助的战略同盟
③反映了中国是推动世界经济发展、造福世界人民的主导力量
④表明中国奉行互利共赢的开放战略,积极拓展中美共同利益