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【简答题】
What do you do to take care of the books in your library? Some collectors(收藏者) refuse to read the books in their collection; so the books remain in good condition. Others buy two copies of a book: they read one, and leave the other untouched. However, many readers must read their books, but they still want to protect and care for the volumes. Here are some tips to remember if you want your books to remain in good condition. [2] Avoid Writing. You may have been told to write in your books, or even to underline words, phrases, and paragraphs. But if you plan to keep the book, add it to your library, or even sell it — don't write in the book. The ink may damage your book forever. Use a notebook to take notes or use pieces of paper. If you are required to write in your book, use a pencil, and remove the markings later. [3] Avoid Food and Drinks. Food and drinks are things that may be dangerous to your books, so the best way is to avoid eating or drinking while you read . If you need to read while you eat, make sure your fingers are clean and dry as you hold the book or turn the pages. Also, keep the book well away from the food and drinks. [4] Take Care. When you handle your book, hold it with care. When you read the book, don't fold down the corners of the pages (use a bookmark instead). Don't place your book with the book open, face-down. You'd better use a book cover to keep your book in the best condition. [5] Put it on the Shelf. If you want to take care of your books, keep your books on a shelf when ____________. But, also, take care that the books should be placed in an upright (竖立的) position. 小题1:What's the main idea of the text? (Please answer within 10 words.) _________________________________________________________ 小题2:Why shouldn't you use a pen if you have to write in your book? (Please answer within 10words.) ______________________ ___________________________________ 小题3:Which sentence in the text is the closest in meaning to the following one? A book cover may be what you need most to keep your book in the best shape. ____________________________ _____________________________ 小题4:Fill in the blank in the last paragraph with proper words. (Please answer within 6 words.) _________________________ ________________________________ 小题5:Translate the underlined sentence in Paragraph 3 into Chinese. ____________ ___________________________________________
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A.
HCl
B.
硫酸铵
C.
三氯乙酸
D.
氯化汞
E.
钼酸
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A.
高浓度HCl
B.
硫酸铵
C.
三氯醋酸
D.
氯化汞
E.
钨酸
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【单选题】G28 X(U)_Z(W)_;中X(U)和Z(W)后面的数值是(    )的坐标。
A.
参考点    
B.
中间点    
C.
目标点    
D.
工件原点
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【单选题】从组织提取液沉淀活性蛋白而又不使之变性的方法是加入()
A.
硫酸铵
B.
三氯醋酸
C.
氯化汞
D.
对氯汞苯甲酸
E.
1mol/LHCl
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A.
The Adaptive Services PIC supports the Layer 3 service package by default.
B.
The Adaptive Services PIC is required when using the secure shell to access an M-series router.
C.
The Adaptive Services PIC can be configured for the Layer 2 and Layer 3 service packages simultaneously.
D.
The Adaptive Services PIC can be configured for either the Layer 2 or the Layer 3 service package but not both at the same time.
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