- 搜標(biāo)題
- 搜題干
- 搜選項(xiàng)
單項(xiàng)選擇題
運(yùn)動(dòng)場(chǎng)地的常用坡度為（）
A.1%-2%
B.1%-5%
C.0.5%-1.5%
D.1%-8%
A.1%-2%
B.1%-5%
C.0.5%-1.5%
D.1%-8%
