The derrick is too low. （）it, please.A、LowerB、HighC、TopD、Adjust
The derrick is too low. （）it, please.
- A、Lower
- B、High
- C、Top
- D、Adjust
相关考题：
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However, in too many countries and societies,women's social _____ is still low. A.positionB.postC.status
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单选题这个吊杆的安全工作负荷是6吨。（）AThe SWL of the derrick is five tons.BThe SWL of the heavy derrick is six tons.CThe SWL of the derrick is six tons.DThe SWL of the crane is six tons.
单选题A user reports that printed pages are smearing after the pages come out of a laser printer. Which of the following is the MOST likely problem?（）AThe corona wire is not supplying the correct voltage.BThe fuser is not reaching the correct temperature.CThe paper is card stock and is too thick.DThe paper has a humidity content that is too low.
单选题The net productivity per gang-hour can be improved through a decrease of（）.ACranes/derricksBCrane/derrick cyclesCCrane/derrick cycle timeDWeight per package
单选题When the union purchase derrick is operated, one derrick is positioned over the quayside and the other almost vertically over the （）.AdockBholdCpedestalDmachinery space
单选题请调高一下吊杆。（）ALower the derrick, please.BTop the derrick, please.CSwing the derrick, please.DAdjust the derrick, please.
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单选题（） may be fitted for operating the derrick topping lift (the wire which adjusts the derrick height).AA capstanBA holdCA warp endDA mooring drum
单选题The derrick is too high.（）it, please.AHighBTopCAdjustDLower