问题
单项选择题
下面关于防火墙策略说法正确的是（）。
A.在创建防火墙策略以前，不需要对企业那些必不可少的应用软件执行风险分析
B.防火墙安全策略一旦设定，就不能在再作任何改变
C.防火墙处理人站通信的缺省策略应该是阻止所有的包和连接，除了被指出的允许通过的通信类型和连接
D.防火墙规则集与防火墙平台体系结构无关
答案
参考答案：C
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下面关于防火墙策略说法正确的是（）。
A.在创建防火墙策略以前，不需要对企业那些必不可少的应用软件执行风险分析
B.防火墙安全策略一旦设定，就不能在再作任何改变
C.防火墙处理人站通信的缺省策略应该是阻止所有的包和连接，除了被指出的允许通过的通信类型和连接
D.防火墙规则集与防火墙平台体系结构无关
参考答案：C
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| Food is very important. Everyone needs to 1 well if he or she wants to have a strong body. Our minds also need a kind of food. This kind of food is 2 . We begin to get knowledge (知识) even when we are very young. Small children are 3 in everything around them. They learn 4 when they are watching and listening. When they are getting older, they begin to 5 story books, science books and anything they like. When they find something new, they love to ask questions and 6 to find out the answers. What is the best 7 to get knowledge? If we learn by ourselves (自学), we will 8 the most knowledge. If we are 9 getting answers from others and do not ask why, we will not learn well. When we study in the right way, we will learn 10 and understand better. | ||||
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