葡萄酒中含有的白藜芦醇具有美容养颜之功效。下列关于白藜芦醇(C14H12O3)的

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问题:

葡萄酒中含有的白藜芦醇具有美容养颜之功效。下列关于白藜芦醇(C14H12O3)的说法不正确的是

A.白藜芦醇由碳、氢、氧三种元素组成

B.白藜芦醇的相对分子质量为228

C.白藜芦醇中碳、氢、氧三种元素的个数比为14︰12︰3

D.白藜芦醇中碳、氢、氧三种元素的质量比为14︰1︰4

考点:化学反应方程式的书写化学图标化学反应方程式的配平化学反应方程式的意义
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根据《企业破产法》的有关规定,债权人会议通过和解协议草案的决议应当由 ( )。

A.出席会议的有表决权的债权人过半数通过,并且其所代表的债权额占无财产担保债权总额的2/3 以上

B.出席会议的有表决权的债权人过半数通过,并且其所代表的债权额占全部债权总额的2/3以上

C.全体有表决权的债权人过半数通过,并且其所代表的债权额占无财产担保债权总额的2/3以上

D.全体有表决权的债权人过半数通过,并且其所代表的债权额占全部债权总额的2/3以上

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吸入用布地奈德混悬液改善AECOPD患者的肺功能同静脉用激素比较,正确的是()。

A.吸入用布地奈德混悬液高

B.静脉用激素高

C.二种药物作用相似

D.目前尚不清楚

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下列关于使用武器的说法正确的是()。

A.只要实施犯罪的人为怀孕妇女、儿童的,人民警察就不得使用武器

B.犯罪分子处于群众聚集的场所,人民警察应当立即停止使用武器

C.犯罪分子劫持人质的,人民警察应当立即停止使用武器

D.犯罪分子失去继续实施犯罪能力的,人民警察应当立即停止使用武器

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在经济周期的某个时期产出、价格、利率、就业呈现出不断上升的趋势,则说明经济变动处于()阶段。

A.繁荣

B.衰退

C.萧条

D.复苏

题型:选择题

At the public radio station KEXP in Seattle, there’s a simple procedure for evaluating new technology. "We just go ahead and do stuff," says one of the station’s morning disc jockeys. That’s how the quirky station created one of the first music podcasts—without support from major record companies.
A podcast is a digital recording of a radio-style audio program that can be downloaded from the Internet and played on a digital music player. Many podcasters think the technology could revolutionize radio as TiVo did television.
Podcasting is a great way for KEXP to reach thousands of new listeners, especially those outside of Seattle. But the station can’t podcast programs such as John in the morning—a variety of independent and mainstream music—because record companies haven’t provided an easy, affordable way for podcasters to license songs. That’s why most podcasts today are talk radio.
KEXP decided that it couldn’t sit around and wait and wait for a major label to sign off on this. So it invited 14 unsigned or small bands from the Seattle area to contribute songs to a podcast. The station asked a lawyer—a listener who volunteers at the station—to draw up a simple contract for the bands. KEXP did not release numbers but said the podcast was a hit. KEXP is now podcasting some live performances to which it owns the rights.
Since podcasts are recordings, they can be played at any time. Listeners can pause, fast-forward or rewind them. And since podcasts are posted online, listeners can download programs from radio stations and independent broadcasters from all over the world. The podcasts can also be hacked and pirated. An enterprising listener could pull songs out of a podcast and turn them into music files or CDs.
That’s why many record companies say the technology is promising but problematic. But record labels worry that listeners will pirate the songs contained in the downloaded radio shows. For example, OK Go and several other emerging bands with EMI have their own podcasts. But EMI is not ready to approve a blanket podcasting license. "Podcasting is potentially very exciting," says Executive Vice-president Adam Klein. The result: yet another Napster-like standoff over piracy and music rights.

Where the words "without support from major record companies" are, the context reads that music broadcast programs ______ record companies.

A.must have the support of

B.require the participation of

C.may enlist the assistance of

D.should enter partnership with

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