百度试题 结果1 题目The area where there are many lakes is rich in natural resources. A. where B. which C. that D. when 相关知识点: 试题来源: 解析 A。本题考查定语从句,先行词是“area”,在从句中作地点状语,所以用“where”。反馈 收藏 ...
百度试题 结果1 题目 Apart from the natural rivers and lakes, there are many man-made canals in China such as the Grand Canal between Beijing and Hangzhou. ( )A.对B.错 相关知识点: 试题来源: 解析 A 反馈 收藏
aNatural resources are natural, for example, land, mountains, rivers, lakes, sea, forest, mineral, and agricultural land, water, and sunshine, rain, thunder, and lightning, and so on, are not human can easily change 自然资源是天然,例如,土地、山、河、湖、海、森林、矿物和农田、水和阳光、...
In recent years, Earth's lakes have come under threat from various factors, posing a risk to their ecosystems and the communities that depend on them. This statement holds true for both freshwater and saltwater lakes and includes natural as well as man-made lakes. One of the biggest threats...
In freshwater ponds and lakes however, pollutants can become concentrated, whereas in the open ocean – even in bays and estuaries – chemicals become quickly diluted. Thus effect of man-made chemicals on fish sex been little studied. “But just because very few people have looked at this in...
或括号内单词的正确形式。 A bird habitat can be a natural or man-made are a 61.Providing provide) birds with an environment that supplies food and water.Natural bird habitats are most commonly found62.there is an ample supply of water for drinking, swimming, and bathing. Birds that hunt ...
1996. The significance of man-made structures for lake trout spawning in the Great Lakes: are they a viable alternative to natural reefs? Can. J. Fish. Aquat. Sci. 53 (S1): 142-151 Abstract , ISI .Fitzsimons, J.D. 1996. The significance of man-made structures for lake trout ...
Aquatic midges are one of the most common and abundant organisms found in natural or man-made water systems. Aquatic midges do not bite, suck blood or carry diseases. They survive in eutrophic waters, which are bodies of water rich in phosphates, nitrates, and other organic nutrients. ...
the location of the statues, including why they appear inland as well as on the coast. “Historical records show the islanders also made wells to get drinking water,” said Lipo, adding that historic wells explained some inland statue locations that were apparently without natural water resources...
However,humans have made a lot of changes to the earth.The technology and industry have made life (9),but they also produce a lot of new waste.Nature finds this new waste hard or(10)to recycle.Man shall deal with this problem before it is too late.(...