据《中国近代工业史资料》统计,1894年前的50多年间,外商在华共创办企业103

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问题:

据《中国近代工业史资料》统计,1894年前的50多年间,外商在华共创办企业103家,到1913年,外资企业增加到300余家。外商企业骤增的主要原因是

A.鸦片战争爆发

B.第一次世界大战爆发

C.《马关条约》签订

D.《辛丑条约》签订

考点:黄海大战来自日本的挑战瓜分狂潮甲午中日战争
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下列可证明海陆变迁的是                                     (  )

①在南极大陆发现了煤、铁资源 ②地球表面的陆地主要集中在北半球 

③日本是一个多地震的国家 

④在我国喜马拉雅山上发现岩石中含有鱼、海螺等海洋生物的化石 ⑤在我国东部海底发现了古河流及水井等人类活动的遗迹

A.①和③

B.②和④

C.④和⑤

D.①和②

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1949年10月15日,中华人民共和国公安部正式成立。 ( )

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第四部分:任务型阅读  (10分)
认真阅读下列短文,并根据所读内容在文章后表格中的空格里填入一个最恰当的单词。
Speaking in public is most people's least favorite thing. The reason is that we are all afraid of making fools of ourselves. The more important the speech is, the more frightened we become. In fact, public speaking is not a "gift" like musical talent. Anybody who can talk can speak in public. Here are some of the lessons I have learned:
Try to make your idea clear and brief. If you can't express what you intend to get across in a sentence or two, and then your speech is not focused well enough. If you don't have a clear idea of what you want to say, your audience will make no sense. After all, what you can impress your audience in your speech is one or two of your main ideas. One or two. Not ten or twenty.
No matter how long or short your speech is, you've got to organize it well-how you are going to open, what major points you want to make and how you're going to close. A strong close is critical: the last thing you say is what your audience will most likely remember. When I do a radio or TV piece, I often write the last sentence first. When you know where you' re headed, you can choose any route to get there.
Finally, you'd better limit the time of your speech as properly as you can to hold the audience's curiosity. Take a vaudeville act (杂耍) for example. The standard length of one is usually 12 minutes. Just imagine how you are feeling if you have been watching all the performers singing and dancing their hearts out for more than the standard time
Title: How to make a   71   speech
Techniques
Reasons
Requirements
 
Keep it brief
and clear
You  should   72  your speech  well enough.
 
Prepare one or two of your main ideas.
The audience will not catch you well if your idea is   73 
Get    your
speech well
_74 
Knowing where you are going, you can make a better   75   of the route to get there.
Know very well about the  76 , body  and ending of the speech
Keep   your
speech time
_77 
Your speech should not be too long so as to make your audience   78
Limit the time of your speech in a  79  way.
If you don't,  the audience will be _80  .
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如图所示,质量分别为2m和m的小球a和b之间用一根长为L的轻杆连接,在当轻杆由水平位置自由释放后绕中心水平光滑轴O转至竖直位置的过程中,若不计空气阻力,则正确的说法是( )

A.杆对a球做正功;

B.杆对b球不做功;

C.b球机械能守恒;

D.a和b球总机械守恒

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绝对禁止使用化学物质的食品为()

A.普通食品

B.无公害食品

C.绿色食品

D.有机食品

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