【单选题】Today, more and more people enjoy ____ things online. [ ]
【判断题】在进行教育研究的过程中,也要遵循相应的伦理原则
【多选题】航空运输合同的主体是指参与航空运输的当事人,包括( )
【单选题】The price of cars is getting ________now, more and more people can afford to buy them.
【多选题】在模具制造中,坐标磨床主要用于加工:()
【单选题】Encouraging people to buy more ______ higher production, employment and more wealth.
【多选题】影响主营业务利润预测的因素主要包括___________。 ( )