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企业对投资性房地产进行日常维护所发生的支出,不符合投资性房地产确认条件,应当在发生时直接计入管理费用。( )
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测得晶体管放大状态下三个电极对地的电压分别为 -2V 、 -8V 、 -2.2V ，则该管为（ ）
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Complete each short paragraph (1-6) with a word or words from the list below.•average•environment•lack•level•liquid•plants•release•trapped1. Millions of years ago, the amount of oxygen in the air was much higher than it is now. This is one reason why some of the __________ and insects alive at that time were bigger than they are now.
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