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【单选题】
下列属于偶然误差的是（）A.
估读小数不准确
B.
尺长不准确
C.
仪器下沉
D.
视准轴与水准轴不平行
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反馈参考答案：
举一反三
【简答题】32+9→（ ）-20→（ ）+4→（ ）-9→（ ）-7→（ ）
【简答题】b2u2 passage2 I have never been able to understand people who don’t see the point in traveling. The common reason is that traveling is a waste of time and money. I’ve heard some are 1) to travel too f...
【简答题】OSI 参考模型从高到低分别是 。
【简答题】OSI参考模型从高到低分别是(__), (__),(__), (__),(__),数据链路层,物理层;
【简答题】I have never been able to understand people who don’t see the point in traveling. The common reason is that traveling is a waste of time and money. I’ve heard some are 1) to travel too far away. I c...
【单选题】题干: 雾中发放声号的时间间隔每次不超过:
A.
号笛、号钟、号锣均为2分钟
B.
号笛、号钟、号锣均为1分钟
C.
号笛为2分钟,号钟、号锣均为1分钟
D.
号笛、号钟为2分钟,号锣均为1分钟
【简答题】OSI参考模型从高到低分别是:()、()、()、()、()、()和()。
【简答题】I have never been able to understand people who don’t see the point in traveling. The common reason is that traveling is a waste of time and money. I’ve heard some are 1) to travel too far away. I can...
【简答题】重要通知:第四周(本周四)上午12节课调至第七周周四12节.收到后请回复:收到。
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