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单选题
Ro/Ro ship()
A
专业船
B
子母船
C
滚装船
D
化学品船
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负反馈放大电路中引入电压串联负反馈措施后,放大电路的输入及输出电阻值(ri及ro)的变化情况是()。
A、ri、ro均增大B、ri、ro均降低C、ri增大、ro降低D、ri降低、ro增大
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用以下的哪个命令可以把server的/tmp mount 到 client的/mnt/tmp 并且是( )A.mount -o ro server:/tmp /mnt/tmpB.mount -o ro /mnt/tmp server:/tmpC .mount -o ro client:/mnt/tmp server:/tmpD.mount -o ro server:/tmp client:/mnt/tmp
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Which of the following statement(s) is/are TRUE regarding lashing requirements to secure vehicles aboard Ro-Ro vessels?A.It is imperative that the securing of cargo on flats and trailers and in containers be adequate for both road and sea motionsB.The movements experienced by road borne cargo differ significantly from the roll and sway movements of a ship at seaC.It is necessary for adequate number and strength of securing points on the vehicles themselves in order that lashings may be properly and safely utilizedD.All the above
考题
What may NOT be used when securing heavy vehicles aboard Ro-Ro vessels ________.A.Chain leverB.TurnbuckleC.WebbingD.Chain
考题
如图所示,已知β=100,rbe=1kΩ,计算放大电路电压放大倍数Au、输入电阻ri和输出电阻ro分别是( )。
A.Au=-6.5,ri=5.2Ω,ro=2kΩ
B.Au=6.5,ri=5.2Ω,ro=20kΩ
C.Au=-65,ri=1kΩ,ro=6kΩ
D.Au=65,ri=200Ω,ro=2kΩ
考题
单选题Which of the following statement(s) is/are TRUE regarding lashing requirements to secure vehicles aboard Ro-Ro vessels? ()A
It is imperative that the securing of cargo on flats and trailers and in containers be adequate for both road and sea motionsB
The movements experienced by road borne cargo differ significantly from the roll and sway movements of a ship at seaC
It is necessary for adequate number and strength of securing points on the vehicles themselves in order that lashings may be properly and safely utilized.D
All the above
考题
单选题Cargo that is suitable for carriage on Ro-Ro vessels includes().A
trailersB
rolling vehiclesC
containersD
All of the above
考题
单选题A disadvantage of using chain lashing on heavy vehicles aboard Ro-Ro vessels is that it is ().A
heavyB
easily damagedC
affected by temperatureD
costly relative to the strength ratio
考题
单选题电流并联负反馈使放大器()A
Ri减小,Ro增加B
Ri增加,Ro减小C
Ri,Ro均增加D
Ri,Ro均减小
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