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單項選擇題

Which of the following characteristics must be matched depending on the specifications of thepower grid for the country a PSU will be utilized in?（）

A. Wattage
B. Amperage
C. Resistance
D. Voltage

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An optical disc with a 4.7GB MAXIMUM storage capacity is likely which of the followingtechnologies?（）

A. DVD-RW
B. CD-RW
C. BD-ROM
D. BD-RW

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Which of the following types of software protection will help mitigate any threats coming fromworms or Trojans?（）

A. Spam blocker
B. Anti-Virus
C. Anti Spyware
D. Anti adware

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