飞行中失去地空联络,目视飞行时机长应当().
A.保持目视飞行,飞往就近机场降落
B.保持目视飞行,飞往降落站降落
C.保持目视飞行,返航回场降落
参考答案:A
I recognized her as soon as I met her at the airport though we hadn’t seen each other for ages and she had changed _________.
A.a large amount
B.a great many
C.a great deal
D.a great deal of
建设工程产品是时代政治、经济、文化、风俗的历史记录,这个特性属于产品的( )。
A.经济性
B.社会性
C.时代性
D.多样性