【简答题】《郑伯克段于鄢》这篇文章选自(),原书本无题目,这一题目是选者后来加的。
【单选题】I must remember ______ John that the garden needs watering.
【简答题】“John’sbike needs repairing”__________“John has a bike”.
【单选题】Before being able to help John the counselor needs to ______.
A.
talk with some of his lecturers
C.
get more information from him
【简答题】一平面通过两点 和 且垂直于平面 ,求它的方程.
【判断题】语法是一种技能意味着语法无法用语言来描述的,只能靠实践锻炼。
【简答题】求过点(1,1,1)且垂直于平面 和 的平面方程.
【单选题】John has great singing _____, but to become a real singer, he needs a lot of necessary training and practice. [ ]
【简答题】求通过点(1,2,1)且垂直于两平面 和 的平面方程. 求得的平面方程为