【单选题】During operation of L/C, ( ) guarantees to buy all the documents from the exporter.
【单选题】During operation of the engine, the fuel supply draws fuel from the , forces it through the filter to the injector pump.
【单选题】Which one of the following error can be avoided during the operation of an experiment?
【单选题】Blow-off of the relief valves of the main cylinders during operation indicates ().
A.
the cylinder cover is cracked
B.
the injector holes is clogged
C.
the cams are not properly set
【多选题】根据《低压配电设计规范》,以下说法正确的是()
A.
在三相四线制配电系统中,中性线(以下简称N线)的允许载流量不应小于线路中最大不平衡负荷电流,且应计入谐波电流的影响
B.
以气体放电灯为主要负荷的回路中,中性线截面不应小于相线截面
C.
采用单芯导线作保护中性线(以下简称PEN线)干线,当截面为铜材时,不应小于10mm 2
D.
直接敷设在土壤中的电缆应采用敷设处历年最热月的月平均温度值
【单选题】Which sentence has the same meaning with"This will facilitate the swing of the boom during operation."?
A.
This will cause trouble to swing of the boom during operation.
B.
This will make for(有助于) the swing of the boom during operation.
【单选题】根据CCMD-3的分类,不属于神经症的是
【简答题】During operation of this machine, it is extremely ___________ to have a understanding of this functions and performance of the machine.
【单选题】This will facilitate the swing of the boom during operation
A.
This will slow down the swing of the boom during operation
B.
This will cause trouble to swing of the boom during operation
C.
This will increase the swing of the boom during operation
D.
This will make for the swing of the boom during operation