【判断题】It is said that English language came into being around fifth century, which is termed to be "Old English." Old English period did not die away untill 11th century when William the Conqueror arrived i...
【简答题】翻译下面的段落。 The only way to learn mathematics is to do mathematics. That tenet is the foundation of the do-it-yourself. The right way to read mathematics is first to read the definitions of the concepts ...