喷气式飞机的V2必须大于()
A、1.2VMCG
B、1.05VLOF
C、1.2VS
参考答案:C
MDS与AA的鉴别要点是()
A.外周血全血细胞减少
B.AA的NAP积分增高
C.MDS的NAP积分增高
D.造血细胞增多
E.嗜碱细胞增多
A slow and easy motion of a vessel in a seaway is an indication of a().
A.small GM
B.low center of gravit
C.stiff vessel
D.large GZ