26 下列那一種測速儀(Speed log),其測速顯示可設定為對地速度(speed over the ground)?(A)水壓式測速儀(Pitot-static log) (B)推進式測速儀(Im
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26 下列那一種測速儀(Speed log),其測速顯示可設定為對地速度(speed over the ground)? (A)水壓式測速儀(Pitot-static log) (B)推進式測速儀(Impeller type log) (C)電磁式測速儀(EM log) (D)都卜勒測速儀(Doppler log)