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【单选题】
下列试剂瓶中的试剂,久置后能变成棕红色的是____。A.
NH 4 SCN
B.
K 4 [Fe(CN) 6 ]
C.
(NH 4 ) 2 S
D.
KBr
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【简答题】小学数学教学论是研究 的一门学科
【单选题】You are upgrading a computer from Windows 98 to Windows 2000 Professional. The computer is a 400-Mhz Pentium III, and has 128 MB of RAM and a 10-GB hard disk. You are performing the installation by us...
A.
Remove the virus checker in Windows 98.
B.
Disable the BIOS virus checker and restart the computer.
C.
Run Fixmbr.Exe from the Windows 2000 Professional CD-ROM.
D.
Modify the Boot.ini file to include a signature parameter on the ARC path of the system partition.
【单选题】听力原文：M: Hi, Mary. Do you want to start writing a lab report after we finish this experiment? W: I can't. In fact I need to finish early because I'm going over to the psychology department to talk to P...
A.
A chemistry assignment.
B.
A study that their chemistry professor did.
C.
A class that the woman is taking.
D.
A job possibility.
【简答题】It is much ________ (ease) for you to use a computer if you know English.
【单选题】If you are a computer vendor in the 1990s, you'll
A.
sell complete computer systems to your customers
B.
sell vehicles with printers and fax machines built in to your customers
C.
sell. more centralized computers to your clients
D.
provide excellent service after sales to your customers
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