单项选择题
Please adjust the derrick （）(向下).
A.upwards
B.downwards
C.forwards
D.backwards
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The （）(箱装货) should be handled by cargo tray.
A. bagged cargo
B. drummed cargo
C. cased cargo
D. packed cargo -
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The （）(侧稳索) has gone wrong.
A. side guy
B. guy
C. center guy
D. side stay -
单项选择题
Adjust the （）(中心稳索), please.
A. center tap
B. center point guy
C. center guy
D. center line block
