Astronaut limit water use to only about three gallons (11 liters) per day. In Russia, cosmonauts are awarded Pilot-Cosmonaut of the Russian Federation upon completion of their missions, often accompanied with the award of Hero of the Russian Federation. This follows the practice established in the USSR where cosmonauts were usually awarded the title Hero of the Soviet Union. At NASA, those who complete astronaut candidate training receive a silver lapel pin. Once they have flown in space, they receive a gold pin. U.S. astronauts who also have active-duty military status receive a special qualification badge, known as the Astronaut Badge,
Chinese as a foreign language also dispatched Chinese teachers abroad, and by the early 1960s had sent teachers afar as the Congo, Cambodia, Yemen and France. In 1962, with the approval of the State Council, the Higher Preparatory School for Foreign Students was set up, later renamed the Beijing Language and Culture University. The programs were disrupted for several years during the Cultural Revolution. According to the Chinese Ministry of Education, there are 330 institutions teaching Mandarin Chinese as a foreign language, receiving about 40,000 foreign students. In addition, there are almost 5,000 Chinese language teachers. Since 1992 the State Education Commission has managed a