较大危险因素的生产经营场所和有关设施、设备管理要求?
参考答案:
生产经营单位应当在有较大危险因素的生产经营场所和有关设施、设备上,设置明显的安全警示标志。
As many as five courses are provided, and you are free to choose ________ suits you best. [ ]
A. whatever
B. whichever
C. whenever
D. wherever
文意理解,古代属于________之学。