单项选择题
What is the MOST significant difference between EDO RAM and fast page mode DRAM？（）
A.EDO RAM is faster. B.EDO RAM is slower. C.EDO RAM is smaller. D.EDO RAM is cheaper.
单项选择题 WhatisthestandardIRQforthekeyboard？（）
单项选择题 Whichcleaningproductshouldbeusedfortheinsideofacomputer？（）
单项选择题 Whenreplacingapowersupply，whatMUSTthetechnicianobserve？（）
