With the mode of engineering firm further improved, it has become a trend to select suppliers of important equipment and materials through bidding.

随着工程公司模式的不断完善，通过招标方式选择重要设备、材料的供应商已成为一种趋势。

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This thesis discusses how to select reading materials in language teaching. The values and functions of both classics and current popular works are stated and their interaction is stressed.

文章以外语教学中如何选择阅读材料为讨论对象，对经典作品和时尚作品的价值和作用及两者的关系进行了多视角的阐述。

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Selecting information tactics is an important way and means to select important viewpoints and materials in confronting the complexity of materials and viewpoints of reading process.

筛选信息策略是阅读过程中面对读物中纷繁的材料和观点筛选出重要观点和重要材料的方法和手段。

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According to the ETF Finder at ETF Channel, FCX makes up 7.86% of the Materials Select Sector SPDR Fund ETF (XLB)which is trading higher by about 0.6% on the day Tuesday.

FORBES: Analyst Favorites of the Metals Titans: Freeport-McMoran Copper & Gold Ranks As a Top Pick

According to the ETF Finder at ETF Channel, DD makes up 10.99% of the Materials Select Sector SPDR Fund ETF (XLB)which is trading up by about 0.1% on the day Friday.

FORBES: See How DuPont Ranks Among Analysts' Top Dow 30 Picks

According to the ETF Finder at ETF Channel, DOW makes up 8.29% of the Materials Select Sector SPDR Fund ETF ( AMEX: XLB )which is trading up by about 0.5% on the day Friday.

FORBES: Dow Chemical Ex-Dividend Reminder