一般书籍或报告在末尾可能会附上一些辅助材料，帮助读者理解正文中的内容或对正文中的内容给出更详细的解释，这些辅助材料通常被称为“附件”。在英语里 appendix、annex 和 attachment 都有“附件”的意思。它们究竟有哪些不同之处？教科书里的附件和电子 ...

This survey was conducted using the American Trends Panel, a nationally representative panel of randomly selected U.S. adults. As with the American public overall, the vast majority of panel members ...

1. If four 12-2 Type NM cables measuring 0.48 in. by 0.20 in. in cross section are run in a raceway along a wall 70 ft between. two pull boxes, what size raceway must be installed? The cross-sectional ...