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It began with three friends searching for an easier way to share videos. One - Jawed Karim - uploaded the site's first clip - a movie of himself dressed in an anorak at San Diego Zoo. By the end of its first year YouTube was broadcasting 25 million videos a day and it was soon bought by the internet giant Google. In 2010 24 hours of video are now uploaded every minute. The site's also become an important political tool - almost a million people watched a wounded girl dying during protests in Iran in July 2009. President Barack Obama successfully used the site during his election campaign. Thousands of teenagers around the world have also used the site to upload embarrassing videos of friends and its creators have been forced to deny claims that it's encouraged bullying. With online habits and fads constantly changing no one's sure what the next five years hold for YouTube. Some believe it could end up as a TV channel beamed into our living rooms. Others predict it will be overtaken by new technology and dumped on the internet scrap heap. 26. What is this passage mainly about?___ ____ A. The birth of Google. B. The origin of YouTube. C. The origin of a TV channel. D. The story of photograph sharing. 27. Which of the following is correct?__________ A. Google has devised a TV channel. B. Google has devised YouTube. C. YouTube was born quite unexpectedly. D. YouTube was as old as Google. 28. Which of the following best describes the relationship between Google and YouTube?______ A. YouTube has been a product of Google. B. YouTube was born independent of Google and later was bought by Google. C. Google designed YouTube. D. Google does not own YouTube. 29. Which of the following is correct about YouTube videos?________ A. A special team of three people makes programs to broadcast. B. Google makes programs online. C. YouTube buys videos to broadcast. D. People broadcast their own recordings online via YouTube. 30. Which of the following best describes YouTube’s future?________ A. Uncertain. B. Bright. C. Full of hope. D. Bad
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【多选题】根据《中华人民共和国职业病防治法》,用人单位应当采取的职业病防治管理措施有()。
A.
制定职业病防治计划和实施方案
B.
建立、健全职业卫生管理制度和操作规程
C.
建立、健全工作场所职业病危害因素检测及评价制度
D.
要求劳动者缴纳防治职业病的有关费用
【单选题】MCS-51系列单片机芯片是双列直插式封装的,有()个引脚。
A.
24
B.
30
C.
40
D.
50
【单选题】在职业病的防护方面,用人单位应当采取的职业病防治管理措施不包括( )。
A.
制订职业病防治计划和实施方案
B.
建立健全职业卫生档案和劳动者健康监护档案
C.
建立健全职业卫生管理制度和操作规程
D.
违章指挥和强令进行没有职业病防护措施的作业
【单选题】MCS-51 系列单片机芯片是双列直插式封装的,有( )个引脚。
A.
24
B.
30
C.
40
D.
16
【简答题】杜丽娘是汤显祖著名的戏剧作品《____________》中的人物。
【单选题】51单片机芯片是双列直插式封装的,有( )个引脚
A.
24
B.
30
C.
40
D.
50
【简答题】用人单位应当采取的职业病防治管理措施有哪些?
【单选题】在职业病的防护方面,用人单位应当采取的职业病防治管理措施不包括( )。
A.
建立健全职业卫生管理制度和操作规程
B.
建立健全职业卫生档案和劳动者健康监护档案
C.
拒绝违章指挥和强令进行没有职业病防护措施的作业
D.
制定职业病防治计划和实施方案
【单选题】汤显祖是(  )著名的剧作家
A.
明代
B.
清代
C.
元代
D.
宋代
【简答题】汤显祖是( )代著名的剧作家。
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