暴发户
发表于 2025-3-28 18:20:13
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opinionated
发表于 2025-3-28 21:19:38
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动脉
发表于 2025-3-29 02:18:15
https://doi.org/10.1007/978-94-009-5729-9bismuth; lead; magnesium; metals; organometallic chemistry; tin
剧本
发表于 2025-3-29 04:41:02
ArsenicThe pharmacological applications of arsenic organo derivatives have already been mentioned. Their use as pesticides and herbicides is now of more commercial importance. The resulting increased concentration of arsenic in the soil is giving rise to great concern and may lead to a general ban on the use of such substances.