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【简答题】
简述影响计算机网络安全的主要因素。
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反馈参考答案：
举一反三
【简答题】ad.而且；再者；此外A. moreover
【简答题】蒸馏是提纯或分离沸点不同的液体混合物的方法。蒸馏时要注意哪些操作事项：
【简答题】ad. 再者,而且,此外_____
【单选题】听力原文： Jane Brown, has been married for 12 years, she has three children and lives in a suburb outside Columbus, Ohio. When her youngest child reached school age, Jane decided to go back to work. She f...
A.
Because she was bored with her husband.
B.
Because she would like to help with the family's finances.
C.
Because she was offered a good job.
D.
Because she was bored with her children.
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