【简答题】_____ is the essence of the Renaissance.
【单选题】C类IP地址的网络号(net-id)的长度为( )
【单选题】区别变形杆菌属和普罗威登斯菌属的最佳试验是
【单选题】Renaissance first appeared in ______
【单选题】Which of the following is NOT true about mooring lines?
A.
Mooring lines are leading in different directions.
B.
Mooring lines have different usages.
C.
Mooring lines prevent a ship from moving forward and backward.
D.
All mooring lines are leading ashore from the fore end or aft end of a ship.
【单选题】Mooring winch should be equipped with mechanical brakes which are capable of holding ______.
A.
half the breaking strength of the mooring line
B.
the full breaking strength of the mooring line
C.
the maximum expected tension of the mooring line
D.
50% over the working tension of the mooring line