--- I've spent the whole afternoon reading books.
--- I think you'd better go out and get some _______ air.
A:bad
B:thick
C:fresh
如图,CD⊥AB,EF⊥AB,垂足分别为D、F,∠1=∠2,
假如穿越时光隧道来到唐朝,你不能经历的事情是( )
如图是一个立体图形的三视图,则这个立体图形是( )
猪编号
1
2
3
4
5
x
169
181
166
185
180
y
95
100
97
103
101