下列属于南宋四大家的是（）。 ["米芾","刘松年","马远","夏圭"]
随着客服中心业务量的加大，人员的增多，对人员工作时间管理方面适用的是（）。 ["客服管理软件","客户服务软件","客服排班软件","客服考核软件"]
行政诉讼的被告应当在收到起诉状副本之日起（）内向人民法院提交作出具体行政行为的有关材料，并提出答辩状。 ["7","10","15","30"]
PDCCH支持的发射模式有（）。 ["发射分集","BF","MIMO"]
When running a large, low-speed, main propulsion diesel engine on heavy fuel, which of the following precautions should be observed when switching back over to diesel oil?（） ["The diesel oil must never be allowed to mix with the heavy fuel","The temperature of the fuel from the pre–heater should be gradually reduced after switching over the three–way valve","The heating steam to the pre-heater should be secured as soon as the diesel fuel passes through the three-way valve","The heating steam must be secured before the diesel oil passes through the three-way valve"]
铝酸钠溶液碳酸化分解主要目的是什么？
