试题与答案

某矿发生瓦斯煤尘爆炸，经查，是由于正在使用的煤电钻接线盒螺栓缺失，未及时处理造成的。

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题型：多项选择题

题目：

某矿发生瓦斯煤尘爆炸，经查，是由于正在使用的煤电钻接线盒螺栓缺失，未及时处理造成的。其原因是该矿违反了《煤矿安全规程》中相关规定（）造成的。

A．防爆电气设备性能遭受破坏的电气设备，必须立即处理或更换，严禁继续使用

B．使用中的防爆电气设备的防爆性能检查，每日应由分片负责电工检查1次外部

C．井下防爆型的通信、信号和控制等装置，应优先采用本质安全型

D．煤电钻必须使用煤电钻综合保护装置

答案：

参考答案：A, B

考点：钳工技能考试井下电钳工井下电钳工题库
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题型：单项选择题

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.

According to Paragraph 2, a podcast is to radio broadcasting is ______ TiVo is to television.

A．that

B．what

C．with

D．which
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