第2题: [单项选择]It takes the computer ______ to write a letter. A. no more than a second B. less than a second C. a little more than a second D. at least one second 参考答案:B 答案解析:事实细节题。题目问电脑回一封信要多久。从文章第三段倒数第二句“Each letter takes less than a second to write.”可以知道,每回一封信不到一秒钟,所以B项是正