A.Shift B.Ctrl C.Alt D.Space
A.GHzB.GBC.bpsD.MB/s
A.=Sheet1$A1+Sheet2$B2 B.=Sheet1!A1+Sheet2!B2 C.Sheet1$A1+Sheet2!B2 D.Sheet1!A1+Sheet2$B2
A.ROM B.FROM C.RAM D.CD-ROM
A.隐藏 B.只读 C.共享 D.存档