Put the blanking caps on the open ends of the telescopic duct and the slat duct.
A.在伸缩管和缝翼输送管的开口端盖上堵盖' B.在伸缩管和缝翼输送管的末端打开堵盖。 C.在防冰管和缝翼输送管的末端打开堵盖。正确答案B
Put the blanking caps on the open ends of the telescopic duct and the slat duct.
A.在伸缩管和缝翼输送管的开口端盖上堵盖' B.在伸缩管和缝翼输送管的末端打开堵盖。 C.在防冰管和缝翼输送管的末端打开堵盖。正确答案B