齐白石纪念馆内藏有齐白石的（），具有十分珍贵的价值。
A. 书画原作
B. 雕刻艺术品
C. 生活用品
D. 文房四宝
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毛泽东在解放战争时期强调土地改革中必须注意的基本原则是（）
A. 消灭富农
B. 必须满足贫雇农的要求
C. 必须坚决地团结中农，不要损害地主阶级的利益
D. 依靠贫雇农，团结中农，有步骤、有分别地消灭封建剥削制度，发展农业生产
Rate your level of proficiency with managing and maintaining physical and logical devices, includingmanaging basic and dynamic disks; monitoring server hardware; optimizing server disk performance; andinstalling, configuring, and troubleshooting server hardware devices. （）
A. I am considered an expert on this. I have successfully done this multiple times without assistance or error. I train or supervise others on this activity. Others come to me when they have questions or need assistance with this.
B. I have successfully done this without assistance and with few errors, but I do not train or supervise others on this activity.
C. I am proficient at this. I have successfully done this on my own, but I occasionally require assistance for some types of problems encountered when doing this and/or occasionally make minor errors.
D. I have successfully done this with the assistance of others or specific instructions.
E. I am a novice. I have not done this yet or I am learning.
以下正确属于客户关系的是（）。
A. 买卖关系
B. 优先供应关系
C. 战略联盟关系
D. 合作伙伴关系
课堂教学效率的高低，取决于（）、（）和（）等三大要素的相互协调。
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