fracking wells 水力压裂井
volatile organic compounds VOC
cheating spouses webstie 已婚人士偷情网站
follow through on 完成
sprout up 涌现
Finished installing R and Rstudio, we come to the installation of Rtools. (Please check the tutorial vedio in coursera) It seems all went fine before installing devtools. However, typing
>install.packages("devtools")
really took a long time to download a series of packages. When finished, a pop-up info indicated an error: “https://class.coursera.org/datascitoolbox-031/lecture/55”
google it, and we found this would work:
Sys.setlocale('LC_ALL','C')
Reasons are complex, here post the reference: http://cos.name/cn/topic/157794/
firefox工具–>选项–>高级中的拼写检查默认是打开的，但是似乎没有作用。查了一下，原来是没有字典。在文本框右键点击添加字典，即可。但是富文本框似乎不能检查。