皮皮学，免费搜题
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【多选题】
在CBM数据库检索中,下列哪项可以提高查准率
A.
用主题词和副主题词组配检索
B.
用OR进行逻辑运算检索
C.
主题词检索时要进行全扩展
D.
采用字段限定检索
拍照语音搜题，微信中搜索"皮皮学"使用
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举一反三
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某一测定值与算数平均值之差
B.
含有误差值与真实值之差
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测定值与真实值之差
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错误值与其真实值之差
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【单选题】误差的正确定义是:
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测量值与算术平均值只差
B.
含有误差之值与真值只差
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测量值与其真值之差
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错误值与其真值只差
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【简答题】Listen and complete the conversation. M: Oh, there are Mike and Paul. W: Who are Mike and Paul? M: My friends in college. W: 1) _________ are they? M: They are standing over there by the doo...
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【单选题】误差的正确定义是
A.
测量值与其算术平均值之差
B.
含有误差之值与真值之差
C.
测量值与其真值之差
D.
错误值与其真值之差
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【单选题】误差的正确定义是
A.
某一测量值与其算术平均值之差
B.
含有误差之值与真实值之差
C.
测量值与真实值之差
D.
错误汁与其真实值之差
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【单选题】误差的正确定义是
A.
某一测量值与其算数平均值之差
B.
含有误差之值与真值之差
C.
测量值与其真值之差
D.
错误值与其真值之差
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【简答题】音频对应3.2.1 Opening Your Mouth : task 3 M: Oh, there are Mike and Paul. W: Who are Mike and Paul? M: My friends in college. W: 1) _________ are they? M: They are standing over there by the doo...
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【简答题】听录音,完成对话! Conversation 1 M: Oh, there are Mike and Paul. W: Who are Mike and Paul? M: My friends in college. W: 1) _________ are they? M: They are standing over there by the door. W: There...
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【简答题】Listen to the Conversation and fill in the blanks. M: Oh, there are Mike and Paul. W: Who are Mike and Paul? M: My friends in college. W: 1) _________ are they? M: They are standing over the...
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【单选题】误差的正确定义是
A.
某一测量值与其算术平均值之差
B.
含有误差之值与真实值之差
C.
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D.
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查看完整题目与答案
【单选题】误差的正确定义是
A.
某一测量值与其算数平均值之差
B.
含有误差之值与真值之差
C.
测量值与其真值之差
D.
错误值与其真值之差
查看完整题目与答案
【简答题】音频对应3.2.1 Opening Your Mouth : task 3 M: Oh, there are Mike and Paul. W: Who are Mike and Paul? M: My friends in college. W: 1) _________ are they? M: They are standing over there by the doo...
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