多项选择题
以下哪些是脱体涡的影响?
A、提高失速迎角前升力
B、推迟失速迎角
C、增加失速迎角前阻力
D、失速后升力迅速下降
以下哪些是脱体涡的影响?
A、提高失速迎角前升力
B、推迟失速迎角
C、增加失速迎角前阻力
D、失速后升力迅速下降
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单项选择题
As to rhyme scheme, the pattern terza rima is followed in ______.
As to rhyme scheme, the pattern terza rima is followed in ______.
A.Don Juan
B.Prometheus Unbound
C."Ode to the West Wind"
D."Ode on a Grecian Urn"