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【单选题】
下列不属于税收特征的是A.
强制性
B.
无偿性
C.
固定性
D.
灵活性
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反馈参考答案：
举一反三
【简答题】adj. 足够的;充足的
【简答题】malware
【简答题】● Spyware and other forms of malware are the biggest online threat to your computer's （71） nowadays. These malicious （72）which get to your PC through freeware, shareware, commercial sites, deceptive p...
【单选题】A technician is preparing user education to raise awareness of malware. The technician’s goal is to increase user awareness and prevent the future spread of malware. All of the following are malware s...
A.
increased number of pop-ups.
B.
decreased volume of spam.
C.
decreased system performance.
D.
home page hijacking.
【简答题】《山鬼》中“采三秀兮于山间”,“三秀”是指( )。
【简答题】Malware, short for malicious 1 , is any software used to disrupt computer 2 , gather sensitive 3 , gain access to private computer 4 , or 5 unwanted advertising. Malware是“恶意软件”(Malware software)的简称,是指...
【单选题】Which of the following is not malware?
A.
Trojan horses
B.
Viruses
C.
Worms
D.
Ad-Aware
【单选题】Malware has been detected and removed on a customer computer several times in a short periodof time. Which of the following will BEST help prevent future occurrences?（）
A.
Defragment the hard drive
B.
Discuss safe web-browsing habits with the customer
C.
Delete temporary files, cookies and browser history
D.
Install anti-virus software which uses manual updates
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