【单选题】When is the density of the water required to be logged in the logbook of a ship?()
A.
Any time the vessel moves from water of one density into waters of a different density
B.
Prior to getting underway when the vessel is floating in fresh or brackish water
C.
Only when the vessel moves from fresh water into salt water
D.
The density of the water is not required to be logged in the unofficial logbook
【简答题】计算机存储器分为主存储器和 (如磁盘存储器)。
【判断题】科学地进行教学设计,提高课堂效率和教学质量。
【简答题】When (heat) ______ , ice changes into water.
【单选题】将存储器分为主存储器、缓冲存储器和BIOS存储器,是按( )划分的。
【判断题】计算机存储器分主存储器和辅助存储器,主存储器就是内存储器,简称内存;辅助存储器称为外存。