求问一个英语语法题T TThe Environmental Protection Agency frequently puts mandatory controls on toxic substances that present as little risk as one chance in a million of causing cancer.中as 和 as之间为什么可以 用名词 little risk?

求问一个英语语法题T TThe Environmental Protection Agency frequently puts mandatory controls on toxic substances that present as little risk as one chance in a million of causing cancer.中as 和 as之间为什么可以 用名词 little risk? 英语语法题.T^TThe scene _____ a brother rode his little sister around the park brought the hours back to me when I played with my brother during the childhood.A.when B.which C.in which D.in that 问一个初一英语语法题问a little,little,few,a few的区别? 求初中英语语法题 英语语法题求解释 现在在做关于水库的遥感监测的论文,想问一下怎样用ENVI求水体的面积,着急! 英语语法和语文语法有什么不同?如题,我们班主任要问,速求! 英语语法大全?哪有?求一个 英语语法题,求具体解答, 英语语法求! 英语语法求 求英语语法, 求ENVI 数字遥感图像处理使用感想 求在ENVI里提取RVI的步骤, 求翻译!翻译下面一段关于唐朝诗歌时代背景的介绍.要快~~急着用~~ 哪位好心人啊~快现身吧~~T.TThe Tang Dynasty was a period of unprecedented economic prosperity and cultural growth in Chinese feudal society.Tang literatu 求指教,ENVI里影像图的X,Y剖面的物理意义是什么?不是一个像元点的么,小白求教,感激不尽. 求问一个线性代数题 英语语法 问方向怎么问