飞行组与乘务组就航班中涉及的安全项目进行沟通协调,明确联络方式。(如:飞行关键阶段,安全信息,机械故障,机组失能,客舱释压,机上火灾,应急处置等)。()
参考答案:对
与骨质疏松症有关的维生素是()
A.维生素A
B.维生素B1
C.维生素C
D.维生素D
E.维生素E
In the Grammar-Translation Method, the first language was maintained as the ______ system in the acquisition of the target language.