用于平衡供求的最低库存取决于设施的地点和企业运作过程的变化。
参考答案:错
You'd better _______ in bed. It's bad for your eyes. [ ]
A. not to read
B. not read
C. don't read
D. read
十周岁以上的未成年人可以订立纯利益的合同。