A. they had; did they B. had they; they did C. they had; they did D. had they; did they 参考答案:A 答案解析:[分析] 测试点为倒装结构。某些具有否定意义的副词,如:never,hardly,seldom以及only+状语在句首时,主句需倒装。如:Only after liberation can scien
第4题: [单项选择]银行利润率() A. 相当于平均利润率 B. 大于平均利润率 C. 小于平均利润率 D. 和平均利润率无关 参考答案:A