请在图中画出杠杆的支点O、动力臂L1和阻力F2的示意图。 杠杆 发布时间:2017-07-25 20:24 │ 来源:www.tikuol.com 题型:操作题 问题: 请在图中画出杠杆的支点O、动力臂L1和阻力F2的示意图。 杠杆
题型:操作题 超声检测甲状腺,其解剖标志是A.气管在其内侧,颈长肌在后方,颈动脉和颈内静脉在外侧,胸锁乳突肌在其内侧B.气管在其内侧,颈长肌在外侧,颈动脉在其后方C.气管和胸锁乳突肌在内侧,颈长肌在后,颈动脉在下方D.气管在其内侧,颈长肌在后方、颈动脉及颈内静脉在其后外侧,胸锁乳突肌在其侧方E.气管在其内侧,颈长肌在前方、颈动脉及颈内静脉在其后内侧,胸锁乳突肌在其侧方 查看答案
题型:操作题 在Excel中,A1单元格的值为18,在A2单元格中输入公式“=IF(A1>20,"优",IF(A1>10,"良","差"))”,按回车键后,A2单元格中显示的值为______。A.优B.良C.差D.#NAME 查看答案
题型:操作题 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.With "another Napster-like standoff over piracy and music rights", the author is using a metaphorical device that can be termed in any of the following EXCEPT ______ .A.allusionB.citationC.quotationD.reference 查看答案