【单选题】

所有单发飞机，除那些已被证明“典型无法螺旋”的飞机外，其手册应包含从螺旋中改出的程序。

A、Manuals for all single engine aircraft, except those that have been shown to be "critically unable to stall", should have procedures for recovering from a stall.
B、Handbooks for all single engine airplanes, other than for those airplanes which have been shown to be "characteristically incapable of spinning" shall contain procedures for recovery from spins.
C、Manuals for single engine aircraft, otherwise these that have been proved to be "featured unable to spin", should include steps for recovering from a spiral.