即时制采购的根本目的是（）
A、提高质量
B、减少供应商数量
C、消除库存，减少不必要的浪费
D、充分交流信息
参考答案：C
-How do you get to school?
-By bike. Bicycle is often __________ than a car in busy cities.[ ]
A. very convenient
B. many more convenient
C. much more convenient
D. the most convenient
属于强制性国家标准的代号是
A．QBB．GB/TC．GBD．LBE．NG
