UndernewrulespostedbytheCivilAviation(航空)administ...
问题详情: UndernewrulespostedbytheCivilAviation(航空)administrationofChinaonFriday,pilotswillhavetopassa“levelfour”testofMandarinChinese,China’sofficiallanguage.Thosewhospeakwithanaccentt...
问题详情: UndernewrulespostedbytheCivilAviation(航空)administrationofChinaonFriday,pilotswillhavetopassa“levelfour”testofMandarinChinese,China’sofficiallanguage.Thosewhospeakwithanaccentt...