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问题 选择题

下列物质在氧气中燃烧，能观察到大量白烟的是（　　）

A．氢气

B．木炭

C．红磷

D．铁丝

答案

A、氢气燃烧产生淡蓝色火焰不产生大量的白烟．

B、木炭在氧气中剧烈燃烧、发出白光、产生大量的热，没有白烟出现．

C、红磷在氧气中剧烈燃烧，冒出浓厚的白烟，产生大量的热．

D、铁丝在氧气中剧烈燃烧，火星四射，生成黑色固体，放出大量的热，没有白烟出现．

故答案选C．

单项选择题

German Chancellor Angela Merkel won over German voters in the Federal Election on Sept. 27. Can she now be won over by a French charm offensive (1) at repairing the relationship that was once at the heart of Europe That’s the question being asked in Paris, (2) top government officials are (3) talking about their desire to rekindle closer ties (4) their neighbors across the Rhine. (5) the end of World War II the Franco-German relationship has been the motor of European integration, the (6) force behind the creation of the European Union and, more recently, the introduction of the euro. But the ardor has (7) in this decade, particularly under Merkel, who has regularly struggled to (8) her irritation with French President Nicolas Sarkozy’s grandstanding. Sarkozy, (9) , has often been impatient with what he (10) Merkel’s lack of resolve.

The sometimes (11) personal rapport is a long way from the public shows of affection their predecessors staged, particularly Helmut Kohl and FranCois Mitterrand, who movingly held (12) in 1984 in a Verdun cemetery. There’s been tension on (13) , too. Charles Grant, director of the London-based think tank Centre for European Reform, points out that France and Germany have been (14) on issues from how best to reflate their economies during the economic (15) to the smartest strategies for dealing with Russia.

But influential movers in France are now (16) to put the relationship back on a friendlier footing. In a recent paper French think tank Institute Montaigne (17) an ambitious agenda for the two nations, (18) that a new impetus is needed if Europe’s voice is to be heard in a world (19) of big new players, such as Brazil and India, and at a time when President Obama seems fax more (20) with China and the rest of Asia than with America’s traditional allies in Europe.

12（）

A.conferences

B.hands

C.opportunities

D.prejudices
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选择题

据台湾“中央社”报道，对于马英九提出的东海和平倡议，正在美国访问的吕秀莲当地时间7日表示，她多数认同，但认为应该“共同不开发”，让钓鱼岛海域成为海洋保育区。早前我国政府公布的政策大致有，公布钓鱼岛领海基线、实施 * * 巡航、提交东海部分海域大陆架划界案、环境监测预报、护渔 * * 等。材料表明

①独立自主是我国外交政策的基本立场       

②我国行使独立权和管辖权

③和平共处五项原则是我国外交政策的宗旨   

④国家利益的差别，外交政策也会有所不同 

A．③④

B．①②

C．①③

D．②③
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