评估采购认证需求时,第一步是要分析()
A.开发批量需求
B.余量需求
C.生产规模
D.减少需求
参考答案:A
--- Is the boy’s house ten miles away from the school?
--- Yes. Nobody in her class lives ________.
A.far
B.farther
C.farthest
D.the furthest
什么叫冷备用?什么叫热备用?