【判断题】设【图片】由上半椭圆周【图片】与直线【图片】及【图片】所围成的闭区域,则在广义极坐标变换【图片】下,【图片】变成【图片】平面上的闭区域【图片】.
【单选题】It is usually easier to follow rules of social behavior. ______depend on one' s own taste.
【单选题】Two decades ago a woman who shook hands with men on her own ______was usually viewed as too for ward.
【简答题】According to the author, if you usually focused on your own problems, or complain frequently, you need to ______.
【单选题】Although they usually did their own painting and papering, on this occasion they brought in a firm of ______ decorators.
【判断题】“乐百氏纯净水的27层净化”属于按照情感需求提炼的卖点。
【单选题】Singe women usually stay away from marriage by their own choice, ______ single men are mostly victims of circumstances. [ ]