【单选题】已知方程2x+ a=x﹣1的解满足2x+6=x+2,则a的值是 [ ]
【简答题】2005年版第五套人民币50元背面荧光反应的图案日常光下呈什么颜色?紫光灯下呈什么颜色?
【单选题】Not unti his fellows criticized him _______ to admit his mistake.
【单选题】表明中国近代报刊评论的主流由政论向新闻评论转型已成不可逆转之势的一个标志是( )
【单选题】听力原文:W: Bob, are you going straight home after school today? M: No, I have a class until one o'clock and after that I'm going to spend a couple of hours at the library before going home. When is Bob g...