【简答题】化学与能源、环境关系密切.请你用学过的化学知识回答下列问题: (1)化石燃料包括煤、______、天然气. (2)煤的气化是高效、清洁利用煤的重要途径.可将煤炼成焦炭,再将焦炭在高温下与水蒸气反应,得到CO和H 2 .该反应的化学方程式为______,基本反应类型是______. (3)化石燃料燃烧时会产生SO 2 气体,SO 2 气体的大量排放引起的环境问题是______. (4)化石燃料是不可...
【简答题】Pr cc2018中,在扭曲效果文件夹包括 种扭曲效果。
【简答题】根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。 1_____. 'We have a difficult time controlling our shopping behavior,' says Alexander Chemev, a associate professor of Northwestern University in Evanston. 'It...
【简答题】What do we usually do first to welcome our friend? The first thing we do when someone comes to visit us is____________ to welcome their guests . 2. What are the three fundamental parts of tea? The thr...
【单选题】According to paragraph 1, why is the ordinary definition of intelligence not sufficient for determining what constitutes artificial intelligence?
A.
It doesn't match the definition of intelligence usually used inI.Q. tests.
B.
It doesn't emphasize the importance of being able to recognize relationships.
C.
It doesn't cover enough of the qualities we associate with being human.
D.
It doesn't include the importance of memory in developing personality.
【单选题】(6分)化学与能源、环境关系密切。请你用学过的化学知识回答下列问题: (1)化石燃料包括煤、 、天然气。 (2)煤的气化是高效、清洁利用煤的重要途径。可将煤炼成焦炭,再将焦炭在高温下与水蒸气反应,得到CO和H 2 。该反应的化学方程式为 ,基本反应类型是 。 (3)化石燃料燃烧时会产生SO 2 气体,SO 2 气体的大量排放引起的环境问题是 。 (4)化石燃料是不可再生的能源,可开发和利用的新能源...