Comprehensive preparation, study and test tool for the Commercial Pilot (Airplane, Rotorcraft, Glider, Lighter-Than-Air) FAA Knowledge Exam. More than …
Comprehensive preparation, study and test tool for the Private Pilot (Airplane, Rotorcraft, Glider, Lighter-Than-Air, Powered Parachute, and Weight-Sh …
SciVerse Scopus Alerts Before logging-in or purchasing Sciverse Scopus Alerts, you may try the app for 30 days. If your institution has access to Scop …
新版增加了幻灯片的编辑、阅读以及 PDF 阅读两大功能,是目前 Android 平台上最好用的办公软件,保留了原版的 Word 文档和 Excel 表格的阅读与编辑,对文档作复制、粘贴、插入等各种编辑动作。因此有了“Documents办公”,用户能够直接在手机上编写文档,随时随地记录工作内容,及时更 …