【简答题】Fill in the blanks with prepositions and adverbs . This is tantamount saying that before it can be regarded as an adequate replacement for a falsified theory, a newly and boldly proposed theory must m...
【单选题】完成选择 An old saying has it that half of all advertising budgets are wasted—the trouble is, no one knows which half. In the internet age, at least in theory, this fraction can be much reduced. By watchi...