新东方优美背诵短文50篇 Unit38:Topaz

38 Topaz Topaz is a hard, transparent mineral. It is a compound of aluminum, silica, and fluorine. Gem topaz is valuable. Jewelers call this variety of the stone precious topaz. The best-known precious topaz gems range in color from rich yellow to l

发表于:2018-12-08 / 阅读(436) / 评论(0)

新概念优美背诵短文50篇

新东方背诵文选 L38 Topaz

Topaz is a hard, transparent mineral. It is a compound of aluminum, silica, and fluorine. Gem topaz is valuable. Jewelers call this variety of the stone

发表于:2018-12-15 / 阅读(253) / 评论(0)

新东方背诵文选

考研背诵50篇——38 Topaz

Topaz is a hard, transparent mineral. It is a compound of aluminum, silica, and fluorine. Gem topaz is valuable. Jewelers call this variety of the stone precious topaz. The best-known precious topaz gems range in color from rich yellow to light brown

发表于:2018-12-30 / 阅读(171) / 评论(0)

考研背诵50篇

双语有声阅读：黄水晶

Topaz Topaz is a hard, transparent mineral. It is a compound of aluminum, silica, and fluorine. Gem topaz is valuable. Jewelers call this variety of the stone precious topaz. The best-known precious topaz gems range in color from rich yellow to light

发表于:2019-02-25 / 阅读(148) / 评论(0)

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acetylenecarboxylie acid

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all water system

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anoxytropic dehydrogenase

antapoplectic

automatic subprogram timing measurement system

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biodeme

biospecifically binding