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【单选题】
IP地址为172.16.101.20,子网掩码为255.255.255.0,则该IP地址中,网络地址占前
A.
19位
B.
20位
C.
22位
D.
24位
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【单选题】内部收益率是指船舶使用期（或还本付息期）内是净现值（）零的投资收益率。
A.
大于
B.
等于
C.
小于
D.
不等于
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【单选题】关于名片内容的建议,下列哪一项是错误的?
A.
可有清晰的照片
B.
没有涂改的痕迹
C.
手写添上联系方式
D.
以上选项都不对
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【简答题】{ 简述继电器的基本原理(两种状态)。 } {
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【判断题】总结的写作格式一般由标题、称谓、正文、落款组成。
A.
正确
B.
错误
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【单选题】“O”形手势(ok手势)在法国表示______。
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钱
B.
暗示同性恋者
C.
同意
D.
毫无价值
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【简答题】谈谈王竹立的“公选课”的过程。 采用电视谈话节目的形式来上课、论坛高专题讨论区、提出问题、收集资料、学生做PPT、嘉宾、学生反应、
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【简答题】简述继电接触器的构造和基本原理。
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【简答题】In the past, man did not have to think about the protection of his environment. There were few people on the earth, and natural 36 seemed to be unlimited. Today things are 37 . The world has become to...
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【简答题】In the past, man did not have to think about protection of the environment. There were very few people on the earth, and natural resources seemed to be unlimited. Today things are different. The world...
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【单选题】内部收益率是指船舶使用期（或还本付息期）内是净现值（）零的投资收益率。
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