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A.14次 | B.15次 | C.16次 | D.17次 |
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A.100 | B.230 | C.130 | D.365 |
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A.4.14min | B.5.52min | C.6.60min | D.7.16min |
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A.3 | B.4 | C.5 | D.6 |
5 . 富兰克林(Benjamin Franklin,1706-1790)是美国著名的政治家和物理学家,去世后留下的财产并不可观,大致只有英镑.但令人惊奇的是,他竟然留下了一份分配几百万英镑财产的遗嘱!这份遗嘱是这样写的:
“……英镑赠给波士顿的居民,如果他们接受了这
英镑,那么这笔钱应托付给一些挑选出来的公民,他们得把这钱按每年
的利率借给一些年轻的手工业者去生息,这笔钱过了
年增加到
英镑.我希望那时候用
英镑来建立一座公共建筑物,剩下的
英镑拿去继续生息
年.在第二个
年末了,这笔款增加到
英镑,其中
英镑还是由波士顿的居民来支配,而其余的
英镑让马萨诸塞州的公众来管理,从此之后,我可不敢多作主张了.”
你认为富兰克林的设想有道理吗?为什么?
6 . 某企业2018年全年投入研发资金150万元,为激励创新,该企业计划今后每年投入的研发资金比上年增长,则该企业全年投入的研发资金开始超过200万元的年份是( )
(参考数据:)
A.2021 | B.2022 | C.2023 | D.2024 |
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A.![]() | B.![]() | C.![]() | D.![]() |
8 . 人类已经进入大数据时代.目前,数据量已经从TB(1TB=1024GB)级别跃升到PB(1PB=1024TB),EB(1EB=1024PB)乃至ZB(1ZB=1024EB)级别.国际数据公司(IDC)的研究结果表明,2008年起全球每年产生的数据量如下表所示:
年份 | 2008 | 2009 | 2010 | 2011 | … | 2020 |
数据量(ZB) | 0.49 | 0.8 | 1.2 | 1.82 | … | 80 |
(1)设2008年为第一年,为较好地描述2008年起第
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(2)根据(1)中所选的函数模型,若选取2009年和2020年的数据量来估计模型中的参数,预计到哪一年,全球生产的数据量将达到2020年的100倍?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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A.5 | B.6 | C.7 | D.8 |
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A.10550年 | B.7550年 |
C.8550年 | D.9550年 |