在“建立”文件/X/Y/A和“打开”文件/X/Y/A的操作中,仅在“打开”操作中存在的操作步骤是( )
A.让用户在指定的存储设备上装存储介质
B.把存储介质上的文件目录读入主存储器
C.按文件名检索文件目录
D.核对用户口令
正确答案是D
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Complete the following sentence with a (compound) word derived from the one(s) given in bracket.
He is employed in a company which ( ) in paper products. (special)