A.recallB.forgetC.avoidD.keep
A. recall
B. forget
C. avoid
D. keep
查看答案
which of the following contributions to long waits at major airport？
A. New restrictions on carry-on bags.
B. The declining efficiency of the TSA.
C. An increase in the number of travelers.
D. Frequent unexpected secret checks.
A.experiencesB.combinesC.justifiesD.influences
A. experiences
B. combines
C. justifies
D. influences
设短路保护的配电线路上，导线长期容许负荷电流应不小于该线路熔体额定电流的（）倍
A. 0.4
B. 0.8
C. 1.25
D. 2.5
动力设备(电源)隔离开关应采用（）
A. 低压断路器
B. 交流触电器
C. 闸刀开关
D. 油开关
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