不法商往往以制造假冒商品来牟取暴利,在市面上经常能看到①用铜戒指冒充金戒指;②用

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问题:

不法商往往以制造假冒商品来牟取暴利,在市面上经常能看到①用铜戒指冒充金戒指;②用铝制工艺品冒充银制工艺品;③用化纤毛线冒充纯毛毛线.怎样用化学方法来鉴别它们的真假.

(1)戒指:______;

(2)工艺品:______;

(3)毛线:______.

考点:物质的鉴别天然有机高分子材料金属活动性物质的推断
题型:问答题
x+y=11
3x+y=27
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请说出至少5种可以使人精神充沛,情绪稳定的食物?

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Walking through my train yesterday, staggering from my seat to the buffet and back, I counted five people reading Harry Potter novels. Not children—these were real grown-ups reading children’s books.

Maybe that would have been understandable. If these people had jumped whole-heartedly into a second childhood it would have made more sense. But they were card-carrying grown-ups with laptops and spreadsheets returning from sales meetings and seminars. Yet they chose to read a children’s book.

I don’t imagine you’ll find this headcount exceptional. You can no longer get on the London Tube and not see a Harry Potter book. Nor is it just the film; these throwback readers were out there in droves long before the movie campaign opened.

So who are these adult readers who have made JK Rowling the second-biggest female earner in Britain (after Madonna) As I have tramped along streets knee-deep in Harry Potter paperbacks, I’ve mentally slotted them into three groups.

First come the Never-Readers, whom Harry has enticed into opening a book. Is this a bad thing Probably not. Writing has many advantages over film, but it can never compete with its magnetic punch. If these books can re-establish the novel as a thrilling experience for some people, then this can only be for the better. If it takes obsession-level hype to lure them into a bookshop, that’s fine by me. But will they go on to read anything else Again, we can only hope.

The second group are the Occasional Readers. These people claim that tiredness, work and children allow them to read only a few books a year. Yet now—to be part of the crowd, to say they’ve read it—they put Harry Potter on their oh-so-select reading list. It’s infuriating, and maddening. Yes, I’m a writer myself, currently writing difficult, unreadable, hopefully unsettling novels, but there are so many other good books out there, so much rewarding, enlightening, enlarging works of fiction for adults; and yet these sad cases are swept along by the hype, the faddism, into reading a children’s book.

The third group are the Regular Readers, for whom Harry is sandwiched between McEwan (英国当代作家) and Balzac, Roth (德国现代诗人) and Dickens. This is the real baffler—what on earth do they get out of reading it Why bother But if they call rattle through it in a week just to say they’ve been there—like going to Longleat (朗利特山庄,英国名胜) or the Eiffel Tower—the worst they’re doing is encouraging others.

What’s the bad effect of the way the Regular Readers read Harry Potter().

A. It will promote too many visits to the places the book mentions.

B. It will discourage people from reading real masterpieces.

C. It will foster reading as part of a fast-food culture.

D. It will cause a confusion of faddism with classics.

题型:问答题

Windows操作中,经常用到剪切、复制和粘贴功能,其中粘贴功能的快捷键为()

A、+C

B、+S

C、+X

D、+V

题型:问答题

表单名为myForm的表单中有一个页框myPageFrame,将该页框的第3页(Page3)的标题设置为“修改”,可以使用代码______。

A.myForm.Page3.myPageFrame.Caption="修改"

B.myForm.mypageFrame.Caption.Page3="修改"

C.Thisform.myPageFrame.Page3.Caption="修改"

D.Thisform.myPageFrame.Caption.Page3="修改"

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