A:沃波尔
B:华盛顿
C:乔治二世
D:俾斯麦
I saw him a large box in his hands and enter the room.
如图,直线a、b被直线c所截,下列条件能使a∥b的是( )
如图为物质的分类关系,①与②是并列关系,③包含在②中,若②是纯净物,则③不可能是( )
(44-9)÷7=____