There are two common types in page replacement algorithm : stack and non-stack strategies.When a real page number increase only stack algorithm can increase the hit rate monotonously.In the following replacement algorithm, which one belongs to non-stack strategy

A．FIFO

B．LRU

C．OPT

D．non of above

[单选题]For one or two types of engine, the piston and rod can be withdrawn downwards from the cylinder into the crankcase and then out through the （）.A . cylinder casingB . cylinder boreC . crankcase doorD . aperture in the cylinder block

[单选题]For one or two types of engine,the piston and rod can be withdrawn downwards from the cylinder into the crankcase and then out through （）.A . the cylinder coverB . the bottom of bed-plateC . the sumpD . the crankcase door

[试题](b) Briefly explain the two types of informal communication known as the grapevine and rumour. (6 marks)

[判断题]Bareboat chartering is more common than other types of chartering.（ ）A.对B.错

[判断题]Bareboat chartering is more common than other types of chartering.（ ）A.对B.错

[单选题]People sometimes confuse acquaintances with friends. The two terms have som

[单选题]People sometimes confuse acquaintances with friends. The two terms have som

[单选题]People sometimes confuse acquaintances with friends. The two terms have som

[单选题]People sometimes confuse acquaintances with friends. The two terms have som

[单选题]People sometimes confuse acquaintances with friends. The two terms have som