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。
单项选择题 (5)为确认Q的存在,需在装置中添加M于 (选填序号)。a. A之前 b.A-B间 c.B-C间 d.C-D间