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【单选题】
听力原文：M: I have this camera here that I bought about 12 months ago. But it suddenly doesn't work. W: Let me have a look at your sales slip, I am sorry, sir. Your warranty's expired. What does the woman mean? (13)A.
The man can have his camera repaired here.
B.
The woman will probably fix the man's camera herself.
C.
The man should buy a new camera.
D.
The woman suggests that the camera should have been brought in earlier.
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举一反三
【单选题】将光盘CD-ROM(cdrom)安装到文件系统的/mnt/cdrom目录下的命令是( )。
A.
mount /mnt/cdrom
B.
mount /mnt/cdrom /dev/cdrom
C.
mount /dev/cdrom
D.
mount /dev/cdrom /mnt/cdrom
【单选题】革兰染色的步骤,正确的是
A.
涂片-固定-干燥-结晶紫-碘液-95%乙醇-石碳酸复红
B.
涂片-固定-干燥-结晶紫-95%乙醇-碘液-石碳酸复红
C.
涂片-干燥-固定-结晶紫-碘液-95%乙醇-石碳酸复红
D.
涂片-干燥-固定-结晶紫-碘液-90%乙醇-石碳酸复红
【单选题】将光盘CD-ROM(cdrom)安装到文件系统的/mnt/cdrom 目录下的命令是( )
A.
mount /dev/ cdrom
B.
mount /mnt/cdrom /dev/ cdrom
C.
mount /mnt/cdrom
D.
mount /dev/cdrom /mnt/cdrom
【单选题】将光盘CD-ROM(cdrom)安装到文件系统的/mnt/cdrom 目录下的命令是?( )
A.
mount /mnt/cdrom
B.
mount /mnt/cdrom /dev/ cdrom
C.
mount /dev/ cdrom /mnt/cdrom
D.
mount /dev/ cdrom
【简答题】AT89S51单片机串行口的方式()可以用于并行扩展
【单选题】将光盘CDROM(hdc)安装挂载到文件系统的目录/mnt/cdrom下的命令是
A.
mount /mnt/cdrom
B.
mount /dev/hdc
C.
mount /dev/hdc /mnt/cdrom
D.
mount /mnt/cdrom /dev/hdc
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