Abstract: Objective to explore the clinical efficacy of making union crown restoration with adjacent tooth after hemisection to repair and retain molar teeth.

摘要目的探讨牙半切除术后与邻牙联冠修复保留磨牙的临床疗效。

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On the eve of monetary union 55% of Germans were against it, making their nation the euro zone's most reluctant founders.

在货币联盟成立的前夜，55%的德国民众反对它，这让他们的国家成了欧元缔造国中最勉强的一个。

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The fact that this is a monetary union of 17 countries makes decision making difficult, which complicates the problem.

这是一个17个国家的货币联盟，很难做决定，使问题更加复杂。

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And it increased the military strength of the Union by making it possible for free blacks to serve in the northern army.

VOA: special.2009.02.09

The Banksy mural, depicting a boy hunched over a sewing machine making Union Jack bunting, disappeared from Whymark Avenue earlier this month.

BBC: Banksy artwork taken in north London withdrawn from sale

Also in preparation is a paper on law-making within the European Union.

ECONOMIST: The Conservatives: Flatliners | The

The city sent letters home with students at those schools saying the union was making it difficult to replace bad teachers, explaining that it intends to re-hire a "significant portion" of the school's staff.

WSJ: Mayor Draws Teacher Threat