【判断题】光散射现象不仅可以区分溶胶溶液和小分子真溶液,也可以区分胶体溶液和高分子溶液。
【单选题】Michael tells the lady diet by ( ).
【单选题】your papers and see how many mistakes you have made. [ ]
【判断题】在贷款活动中,货币的贷出者成为债权人,借入者则成为债务人。
【判断题】Someone said " Sorry, but I already have another appointment." after you had made an invitation. It means he declined your invitation politely. ( )
【简答题】在贷款活动中,货币的贷出者成为债权人,借入者则成为()。