题目内容
加工精度愈高，加工误差愈()。
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磨削加工时，提高砂轮速度可使加工表面粗糙度数值()。
微软的access数据库是一种_______数据库
A 低端的
B中端的
C 高端的
D 无法确定
Write about the following topic.
The pace of life nowadays is much faster than it was in the past and there is plenty of evidence to show that this causes people a lot of stress. What are some ways of alleviating stress？
Give reasons for your answer and include any relevant examples from your own knowledge or experience.
Write your article in about 160 words in an appropriate style. on the answer sheet.
Spam messages are increasing rapidly and are soon expected to make up about half of all email messages. Using【70】______methods, spammers can send millions of emails with the click of a button. Anti-spammers struggle to keep up with their tactics, using trained technicians and software filters to minimise spam. Internet service【71】______are leading the fight against spam, which costs them and their customers billions of dollars each year. Anti-spam technicians watch the flow of email on the Internet, keeping an eve out for mass mailings. However, spammers are hard to track, since they can easily【72】______in the web of technology. Some small companies are trying to fight spam by collecting the email addresses of spam senders and publicizing them. Individuals can slow spam too, by【73】______chat groups, choosing a longer email address, and keeping multiple accounts. Still, in the long run, it may take new【74】______ or stricter laws to stop spam. In the meantime, users will continue【75】______under huge quantities of spam.
(30)
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