问题
选择题
If people cutting down the forest, they will have nowhere .[ ]
A. keep; to live in
B. will keep; t o live in
C. keep; to live
D. will keep; to live
答案
答案：C
搜题请搜索小程序“爱下问搜题”
If people cutting down the forest, they will have nowhere .[ ]
A. keep; to live in
B. will keep; t o live in
C. keep; to live
D. will keep; to live
答案：C
的初速度竖直上抛，不计空气阻力。
取10
。5s内物体的（ ）
