题干
Look! The police ______ the food onto the bank of the river.
A：am carrying
B：is carrying
C：are carrying
D：are carried
答案(点此获取答案解析）
C
Look! The police ______ the food onto the bank of the river.
A：am carrying
B：is carrying
C：are carrying
D：are carried
为等腰三角形，
,
为
边上的高，若
，
,则