There is a ________ shop near my home. It sells bananas, apples, pears and oranges.
A:vegetable
B:food
C:fruit
D:drink
读图,城市A大量利用太阳能电池的主要原因是( )
如图,ABCD是对角线互相垂直的四边形,且OB=OD,请你添加一个适当的条件____ ,使ABCD成为菱形(只需添加一个即可)