United States Astronaut Badge is used for USAF Mission Specialists who have completed training but not a mission and are not otherwise aeronautically rated as a USAF pilot, RPA pilot, combat systems officer, air battle manager, or flight surgeon. In 2007, the U.S. Air Force announced the opening of astronaut mission specialists positions to enlisted personnel who met certain eligibility requirements. These requirements include: No enlisted astronaut badges are yet known to have been issued. The gold astronaut device is issued by the U.S. Army to Army aviators, flight surgeons, and aircrew members that qualify as astronauts. The astronaut device is a gold shooting
Chinese as a foreign language (one year and about 8 months), to learn Mandarin. A quote attributed to William Milne, Morrison's colleague, goes that learning Chinese is Several major difficulties stand out: While English uses an alphabet, Chinese uses "hanzi", or Chinese characters, as its writing system. The "Kangxi dictionary" contains 47,035 characters (). However, most of the characters contained there are archaic and obscure. The Chart of Common Characters of Modern Chinese (), promulgated in People's Republic of China, lists 2,500 common characters and 1,000 less-than-common characters, while the Chart of Generally Utilized Characters of Modern Chinese () lists 7,000 characters, including the 3,500