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【判断题】
控制对一个对象的访问,给不同的用户提供不同级别的使用权限时可以考虑使用虚拟代理.A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】How can weekend guest eat at the cafeteria?
A.
By paying for meals one at a time.
B.
By borrowing a student's meal card.
C.
By ordering their meals in advance.
D.
By buying a weekend meal car
【简答题】斯宾诺莎认为实体有哪些特点?
【单选题】How can weekend guest eat in the cafeteria?
A.
By paying for single meals on a walk-in basis.
B.
By borrowing a student's meal card.
C.
By ordering most of their meals in advance.
D.
By buying a weekend meal card.
【简答题】How can the guest reach the room ?
【单选题】How can weekend guest eat at the cafeteria?
A.
By paying for meals one at a time.
B.
By borrowing a student's meal card.
C.
By ordering their meals in advance.
D.
By buying a weekend meal card.
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