【单选题】He has never seen the Greens and he knows ______about them.
【判断题】从一个已知高级水准点出发,沿各待测高程的水准点进行水准测量,最后测到另一已知高级水准点上,该水准路线称为闭合水准路线
【单选题】Little ______ that the police are about to arrest him.
【单选题】He knows )____ English but he has _____ English friends. [ ]
【单选题】143从一个已知高级水准点出发,沿各待测高程的水准点进行水准测量,然后测到另一已知高级水准点上结束,该水准路线称为()
【判断题】常系数差分方程所对应的系统一定是线性时不变的
【简答题】He knows about the even (little) ______ than you do.
【单选题】He knows little of English to say ______ of English culture.
【单选题】He knows ______ English now.
【简答题】He knows even ______ (little)about the Olympic s than I do.