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【单选题】
所谓等精度观测，一般是指（）A.
根据观测数据，计算观测结果的精度是相同时
B.
相同技术水平的人，使用同一种仪器、采用相同的方法，在大致相同外界条件下所作的观测
C.
相同技术水平的人，使用同精度的仪器，采用相同的方法，在大致相同外界条件下的观测
D.
观测值的结果是一样的一系列观测
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举一反三
【单选题】听力原文：M: Excuse me. I'm looking for this book. It's in the list of titles but I couldn't find it on the shelf. W: Let me see. Oh, it's been checked out. It's due on June 26. If you want us to reserve i...
A.
It won't come out until June 26.
B.
It hasn't been returned by the borrower.
C.
It is not available unless it has been reserved.
D.
It was withdrawn from the shelf as a back issue.
【判断题】dh=c p dT 适用于任何工质的定压过程,水蒸气定压汽化过程中 dT=0 ,由此得出结论,水在定压汽化时 dh=c p dT=0 ,此结论是否正确
A.
正确
B.
错误
【简答题】● Look at the list below. It shows the titles of chapters from a book about management. ● For questions 6-10, decide which chapter (A-H) each person on the opposite page should read. ● For each questi...
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