掌握()是国家制定国民经济计划,加强土地管理,合理利用土地资源,切实保护耕地的重要依据。
A.土地覆盖的特征
B.土地用途的差异
C.土地经营的特点
D.土地利用现状
参考答案:D
We had wanted to finish our task by noon, but it didn't quite ______ as planned. [ ]
A. find out
B. give out
C. hand out
D. work out
MPS可以说是MRP的起点。