第2题: [单项选择]No sooner ______ than he realized that he should have remained silent. A. had the words been spoken B. the words had spoken C. the words had been spoken D. had the words spoken 参考答案:A 答案解析:考查句型"no sooner...than",意为“一……就”,其中no sooner...部分要倒装。该句意为“他话一出口,就马上意识到他本应保持沉默”。同义结构有:hardly (scarcely
第3题: [单项选择]装箱是把值类型转换到()类型。 A. 数组 B. 引用 C. char D. string 参考答案:B