单项选择题 The lady welled around the shops_______, an eye out for bargains.A.keep B.kept C.keepingD.to keep

单项选择题 Swimming is my favorite sport, There is_____ like swimming as a means of keeping fit.A.something B.anythingC.nothing D.everything

多项选择题 对于涉及国家经济安全的重大项目，除了基本的评估内容外，还应结合（）等方面的分析，进行投资项目的经济安全分析。