[单选题][单选题]神经节细胞-我要搜题网

[多选题]各级单位应当加强对本单位使用国际互联网的日常管理，抓好(　　)等制度的落实。
A.上网登记
B.终端管理
C.保密检查
D.技术服务

[不定项选择题]There is a certain inevitability that ebook sales have now overtaken paperback sales on Amazon’s US site.Amazon’s Kindle 2 is so light and so cheap that it’s easy to see why people have rushed to buy it.Though I’m still not keen on the design of the Kindle,it is a vast improvement on its predecessor and certainly tolerable.Beyond the device itself,Amazon has done a great job of rolling out Kindle apps,ensuring that people like me-who have an iPad but not a Kindle can still join in the fun. Once you’re into the Kindle ecosystem,Amazon locks you in tightly-just as Apple does with its iTunes/iPod ecosystem.It’s so easy to buy from Amazon’s store and the books are so cheap that it’s not worth the effort of going elsewhere. While I remain opposed to Amazon’s DRM(数字版权管理)-indeed,I’m opposed to DRM on any ebooks-I have to admit that the implementation is so smooth that most Kindle users won’t care at all that their ebooks can’t be moved to other devices. The ebook trend is nowhere near peaking.Over the next five years we can expect to see more and more readers move away from printed books and pick up ebooks instead.But I don’t think that will mean the death of the printed book. There are some who prefer printed books.They like having shelves filled with books they’ve read and books they plan to read;they like the feel of the book in their hands and the different weights and typefaces and layouts of different titles.In other words,they like the physical form of the book almost as much as the words it contains. I can sympathize with those people.As I wrote earlier this week,my ideal situation would be for publishers to bundle e-books with printed ones-in much the same way that film studio DVDs with digital copies of films.There’s no reason to think that lovers of printed books will change their minds.There will undoubtedly be fewer of them as time goes by because more people will grow up with ebooks and spend little time with printed ones.However,just as there are people who love vinyl records(黑胶唱片),even if they were born well into the CD era,there will still be a dedicated minority who love physical books. Since there are fewer of these people,that will mean fewer bookshops and higher prices for printed books but I don’t think the picture is entirely bleak.There is scope for smaller print runs of lavishly designed printed books and bookshops aimed at book lovers,rather than the Stieg Larsson-reading masses.With mainstream readers out of the printed book market, booklovers might even find they get a better experience. It can be learned that the trend of ebooks______《》（）
A.will come to stop any time soon
B.will reach the summit in the near future
C.will meet its heyday when printed books die
D.has already reached its peak

[单选题][单选题]神经节细胞A.对感光细胞器营养和保护作用B.能进行光电转换C.是信息传递的第二级神经元D.能产生动作电位E.起联络感光细胞作用

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[单选题][单选题]神经节细胞
A.对感光细胞器营养和保护作用
B.能进行光电转换
C.是信息传递的第二级神经元
D.能产生动作电位
E.起联络感光细胞作用