百度试题 结果1 题目This is ___ the river has been polluted. A. what B. why C. that D. 。 whether 相关知识点: 试题来源: 解析 B 反馈 收藏
The article mentions that the river is polluted. What is the main source of pollution? A. Industrial waste B. Agricultural runoff C. Household waste D. Sewage 相关知识点: 试题来源: 解析 A。文中提到河流被污染,后面说明了主要污染源是工业废水,所以答案是 A。选项 B“农业径流”文中未提及是...
百度试题 结果1 题目This is ___ the river has been polluted. A. what B. why C. that D. whether 相关知识点: 试题来源: 解析 B 反馈 收藏
百度试题 题目This is ___ the river has been polluted. A. whatB. whyC. thatD. whether 相关知识点: 试题来源: 解析 B 反馈 收藏
What is the most polluted river in the United States? What river is the Aswan High Dam located on? What river runs through China, Thailand, Laos, and Vietnam? Which river has the greatest discharge of any stream on Earth? What river is the primary source of water for Atlanta?
解析 A。解析:原句是现在进行时的主动语态,其被动语态结构为“am/is/are + being+ 过去分词”。原句主语“the polluted river”变为被动句主语,原句谓语“are cleaning”变为“is being cleaned”,原句主语“they”变为“by them”。B选项“are”用法错误;C选项缺少be动词;D选项是一般现在时的被动语态。
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isthemostdistantindividualstareverseen.Theydescribeitas50to100timesmoremassivethan oursun,androughly1milliontimesbrighter,withitsstarlighthavingtravelled12.9billionyears toreachthetelescope. Theleadauthoronthereport,Brian Welch,gavethestaraname:Earendel,meaning “morningstars”.“Earendelwasfoundinayounggalaxyknow...
There it spends most of its life. When it is old, it returns to its birthplace in fresh water. Then it gives birth and dies there. In the north of Europe, there is a kind of mice. They leave their mountain homes when their homes become too crowded. They move down to the low land...
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