35. Ethylene and trans-dichloroethylene are both inactive in the infra-red in this region .
乙烯和反式二氯乙烯在红外光谱的这个区域都无活性。
声明:以上例句、词性分类均由互联网资源自动生成,部分未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。
全
试
7 

(第2辑)
全
试
11 
New Delhi is under a public health emergency, schools have been closed, tracks from other areas are not allowed to enter the capital, construction projects have been put on hold, pollution is not something that's new for the city.
新德里正在遭遇紧急公共健康危机,学校为此停课。其他
的大型车辆禁止驶入新德里,建筑工程也被叫停。污染在新德里已经屡见不鲜。


精听 So while there might be significant increases in energy use at localized regions of the brain when we perform difficult cognitive tasks, when it comes to the whole brain's energy budget overall, these activities don't significantly alter it.
因此,尽管我们执行有难度的认知任务时,大脑局部
的能量消耗可能会显著提升,但是就整个大脑的能量平衡来说,这些认知任务并不能导致能量总和发生显著改变。
2014年4月合集
2013年12月合集
2016年7月合集