如图,菱形ABCD的周长为16,若∠BAD=60°,E是AB的中点,则点E的坐标为( )
A:(1,1)
B:(3,1)
C:(1,3)
D:(23,2)
—Do you know why the teacher asks for me?
—He wants you to _____ your absence last night.
扩句
①妈妈包饺子。
②口味花样翻新。
下列物质中不属于石油加工产品的是( )