单项选择题 Dialects refer to ( ).A. different ways of speaking the same languageB. different written systemsC. different grammatical structuresD. different languages spoken in one place

单项选择题 When we speak of a language as being dead we mean that it ( ).A. does not have a written formB. does not have living speakersC. has not been translatedD. has been forbidden by the government

单项选择题 下面的对联所描述的历史人物是（ ）。“两表受三顾，一对足千秋”