【单选题】For most of the history of our country, women were expected to remain in the home and raise the children. However, forces in the culture, as well as economic considerations, have dramatically altered ...
【单选题】在word2010的编辑状态,进行字体设置操作后,按新设置的字体显示的文字是___________。
【简答题】LL(1) 文法分析(共计 15 分) ( 1 )计算文法 G[A] 的文法符号的 FIRST 和 FOLLOW 集合,填入表 1 中 (4 分 ) (2) 判断能否将文法改写成为 LL(1) 文法,写明改写后的结果文法,如果是 LL(1) 文法,则给出其预测分析表。 (11 分 ) G[A] : A à aABe | a B à Bb | d 表 1 FIRST FOLLOW A B
【判断题】包含左递归的文法也能直接用LL(1)分析法来分析。
【判断题】保留时间与色谱柱的直径、长短、使用时间、固定相类型、载气流量以及温度有关。
【判断题】LL(1)分析过程中使用的分析栈只能存放文法的终结符。 ( )
【判断题】支付宝是现在流行的唯一的、最便捷的虚拟支付工具。
【判断题】In Western culture, you can start eating as soon as the food is served in front of you. 2. At table, you can speak loudly and laugh all the time. 3. The custom of toasting in Western culture is to fin...
【简答题】Exercise 2 Fill in each blank with the proper form of the word given in the brackets. 1. This store sells a wide range of (cosmetic) _____________ at a very low price. A wide range of (被动句) __________...