The vast grasslands of the High Plains in the central United States were settled by farmers and ranchers in the 1880s. This region has a semiarid climate, and for 50 years after its settlement, it supported a low-intensity agricultural economy of cat…

Estimates indicate that the aquifer contains enough water to fill Lake Huron, but unfortunately, under the semiarid climatic conditions that presently exist in the region, rates of addition to the aquifer are minimal,amounting to about half a centime…

In the face of the upcoming water supply crisis, a number of grandiose schemes have been developed to transport vast quantities of water by canal or pipeline from the Mississippi, the Missouri, or the Arkansas rivers. Unfortunately, the cost of water…

20150729 Created By BaoXinjian…

一.python小知识 1.python中无模块作用域 Java /c# 不可以, Python.javascript 可以 for i in range(10): name = i print(i) #输出9 2.python是以函数作为作用域 #2.python中是以函数作为作用域: def foo(): name = "lcj" print(name) foo() #执行函数foo() #输出lcj 小知识3:作用域链接,由内向外找,直到找不到就报错 #作用域链接,由内向外找,直…

本章主要讲如何在无root权限(包含无sudo权限)条件下于centos命令行中安装nginx以及在大于1024的端口(这里用8080)上运行. 1. 安装 两种方式,一是下载预编译好的rpm包安装,二是下载源码后自己编译. 如果是通过下载rpm方式安装,首先要找对应centos版本的rpm包. 通过命令 cat /etc/*release* 的输出可以看到centos系统的版本,在我能访问的某个云主机上显示如下:…

智课雅思词汇---六.fer是什么意思 一.总结 一句话总结:词根:fer = to carry(拿), to bring(带来), to bear(负担, 1.equ是什么意思? 词根:-equ- [词根含义]:均,等 [词根来源]:来源于拉丁语形容词aequalis, aequale, aequalior(均,等)和aequus, aequa(相等的). [同源单词]:adequacy, adequate, equal, equality, equally 词根:equ(iqu) = equ…

2016/9/19 Monday 1.make ppt for today's group meeting 2.recite 100 words 3.review <图解机器学习>ch1~ch2 4.15:15 participate in the group meeting 5.copy materials about interviews for isgf meeting & emotiw16 thesis from pc to u disk 5.finish tpo3 6.arr…