【判断题】连续时间信号中,周期信号的频谱为连续频谱。
【简答题】He spoke so ______ (rude) that all of us got angry.
【判断题】纤维素属于糖类,也能被人体消化吸收。( )
【多选题】中国油气资源主要集中在松辽、渤海湾、鄂尔多斯、塔里木、准 噶 尔、( )、( )、( )等8个大型盆地。
【单选题】He spoke English so well that I took it for _____ that he was an American.
【多选题】下列各项目中只影响营业利润而不影响利润总额的有( )。