皮皮学，免费搜题
登录
搜题
【简答题】
(Para. 1) 1 What did each of the writer’s family want after living in Las Vegas for nearly ten years? (Para. 4) 2 What was so unusual about the property they finally decided to purchase? (Para. 7) 3 How did the writer’s family solve the problem of electricity? And how about water? (Para. 8) 4 What, in the writer’s view, was one of the greatest benefits of living off the grid? (Para. 10) 5 What other changes were they trying to make in addition to becoming more economical with power and water usage?
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【多选题】单纯形法中,在进行换基运算时,应 。
A.
先选取进基变量，再选取出基变量
B.
先选出基变量，再选进基变量
C.
进基变量的系数列向量应化为单位向量
D.
旋转变换时采用的矩阵的初等行变换
E.
出基变量的选取是根据最小比值法则
【简答题】朝( )ずっと雨が降っている。