滤泡型淋巴瘤发生的主要分子机制是() A.BCL-2基因转位 B.BCL-2基因点突

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问题:

滤泡型淋巴瘤发生的主要分子机制是()

A.BCL-2基因转位

B.BCL-2基因点突变

C.BCL-2基因扩增

D.BCL-2基因缺失

E.BCL-2基因转变成癌基因

考点:老年医学(医学高级)老年医学综合练习老年医学综合练习题库
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选出与句子相符的图片。
( ) 1. This is a cloud.A.
( ) 2. This is rain.B.
( ) 3. This is wind. The wind is blowing the tree's leaves. C.
( ) 4. This is snow. Snow is cold and white. D.
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单项式-
x2y
5
的系数是______,次数是______.
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病历摘要:患者男性,45岁。头部被他人用木棍打伤1小时,呕吐3次,于23时急诊就医。受伤当时昏迷约20分钟。既往身体健康。体检:T:37.6℃,P:82次/分,R:19次/分,BP:20/13kPa(150/98mmHg)。GCS:11分,躁动。双侧瞳孔等大、等园,直径2.5mm,对光反射迟钝。双侧额部和右枕部有多处头皮伤痕和头皮血肿,右额部有一长4.0cm之头皮裂伤。四肢可活动,右侧Babinski征(士)。

提问:病人出现上述情况时要考虑哪种疾病?(提示:术后7天,病人呈嗜睡状,GCS:12分,解柏油样稀便约300ml,BP:14/9kPa(105/68mmHg),Hb:105g/L,大便潜血(++++)。)()

A.消化性胃溃疡出血

B.消化性十二指肠球部溃疡出血

C.应激性溃疡(Cushing’s溃疡)出血

D.食道静脉曲张破裂出血

E.痔疮出血

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People don’t want to buy information online. Why Because they don’t have to. No more than that because they’re used to not paying for it. That’s the conventional wisdom. Slate, Microsoft’s online politics-and-culture magazine, is an oft-cited example of the failed attempts to charge a fee for access to content. So far, for most publishers, it hasn’t worked.

But nothing on the Web is a done deal. In September graphics-soft-ware powerhouse Adobe announced new applications that integrate commerce into downloading books and articles online, with Simon & Schuster, Barnes and Noble, and Salon. corn among its high-profile partners. Some analysts put the market for digitized publishing at more than $100 billion. Of course, if the Internet can generate that kind of money—some might say almost any kind of money—people want in. And this couldn’t come at a better time. Newspaper and magazine writers in particular are increasingly frustrated by their publishers, which post their writings online but frequently don’t pay them extra.

So here’s the good news: Fathrain. com, the third biggest book-seller on the Net—after Amazon. com and Barnesandnoble. corn—is now doing just what the publishing industry that made it a success fears., it’s offering a secure way to pay for downloadable manuscripts online. Fatbrain calls it offshoot eMatter. With it, the company’s executives have the radical notion of ousting publishers from the book-selling business altogether by giving writers 50% of each and every sale (To reel in authors, eMatter is running a 100% royalty promotion until the end of the year. ) Suggested prices to consumers range from a minimum $ 2 to $ 20, depending on the size of the book to download.

"This will change publishing forever!" Chris MaeAskill, co-founder and chief executive of Fatbrain, declares with the bravado of an interior decorator. "With eBay, anybody could sell antiques. Now anybody can be published. "

There’s been no shortage of authors wanting in. Within a few weeks, according to the company, some 2,000 writers signed on to publish their works. Some of this is technical stuff—Fatbrain got where it is by specializing in technical books—but there are some well-known writers like Catherine Lanigan, author of Romancing the Stone, who has put her out-of-print books and a new novella on the site. Another popular draw is Richard Bach, who agreed to post a 23-page short story to the site.

Not everyone thinks downloadable documents are the biggest thing in publishing since Oprah’s Book Club. "I think it will appeal to sellers more than buyers," says Michael May, a digitalcommerce analyst at Jupiter Communications, which released a report that cast doubt on the market’s potential. "A lot of people are going to publish gibberish. The challenge is to ensure the quality of the work. "

Blaine Mathieu, an analyst at Gartner Group’s Dataquest, says, "Most people who want digital content want it immediately, I don’t know if this model would satisfy their immediate need. Even authors may not find that Web distribution of their works is going to bring them a pot of gold. For one thing, it could undermine sales rather than enhance them. For another, anybody could e-mail downloaded copies of manuscripts around town or around the world over the Net without the writer’s ever seeing a proverbial dime. " Softlock. com, Authentica and Fatbrain are trying to head this problem off by developing encryption padlocks that would allow only one hard drive to receive and print the manuscripts. For now, the problem persists.

According to the passage, the author implies that people don’t have to buy information on Net because()

A. it’s always free to download information from websites

B. most writers offer free copies on Net

C. publishing companies offer free copies on Net

D. anybody can e-mail downloaded copies

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相对于股票筹资而言,银行借款筹资方式的缺点是( )

A.财务风险高

B.筹资成本高

C.筹资速度慢

D.限制条件少

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