单项选择题

‎关于物质的旋光性的描述正确的是‎

A.外消旋体也可以使偏振光发生偏转
B.R构型化合物一定使偏振光发生左旋
C.R构型化合物一定使偏振光发生右旋
D.物质使偏振光发生旋转的性质称为旋光性
热门 试题

单项选择题
0|show data-onresultcheck= *redo|*.na|hide@*correct|*.na|hide@*reset|*.na|hide >A small group of people stood in the cold wind early Saturday afternoon in front of Bank of America’s downtown Columbia branch, holding signs and trying to deliver a message to passers-by: The bank should not support the continued use of fossil fuels, namely by partially financing the Dakota Access Pipeline.The protesters held signs that promoted clean energy and expressed their anger at the bank in front of its branch for financing a portion of the project. Perry Bigsoldier, who claims Native American tribal heritage, said he hoped people would see them and think about the issue.“Our first mission was to make people aware of this,” he said. “Of course there’s only seven or eight protesters, but quality over quantity. These are dedicated people and that’s what we’re seeing across the nation, dedicated people that are tired of oppression and injustice.”The pipeline has caused a lot of disagreement for months as a Texas-based company has sought to build a portion of it across land in North Dakota that a Native American tribe holds dear. People have protested around the country, and hundreds remain at the site protesting its construction.3. What did the people protest in front of the bank according to the news report?A、The bank’s business in fossil fuels from North Dakota. B、The bank’s support of a Native American organization. C、The bank’s use of unfair terms and conditions. D、The bank’s funding for a construction project.
相关试题