1 How many species of whales are there?2 What is the criterion to divide the main types of whales?3 What do whales use sounds for?4 Why do the campers take pictures of the whales' fins?5 Why do they contact other research groups?
species单复数形式相同,不存在specieses的形式。本句中从意思上判断应为复数,因此后面的动词应用are。而fish通常也没有复数形式变化,虽然有fishes的形式存在,但它只在强调各种不同种类的鱼时才用,如:to。 eat two fish(吃两条鱼),to catch a lot of fishes(捕到多种鱼)。结果一 题目 How many___known altog...
具体表现为：不敢在外边的饭店吃饭，担心饭店的菜洗不干净，炒菜用的油是泔水。不敢吃牛肉干，害怕得疯牛病，不敢吃猪肉，猪饲料中激素太多。尤其是“福寿螺”事件后，不仅小龙虾之类，甚至海鲜类的食物也拒绝吃了。米饭也是尽能少吃，因为大米上的农药实在是太多了。该女士认为吃饭实在是令人头痛的事，导致...
Corrigendum: How many species of mammals are there?doi:10.1093/jmammal/gyz052MAMMALOGYMAMMALSA correction is presented to the article "How many species of mammals are there?" which appeared in the previous issue.Journal of Mammalogy
7. not clearly known how many animal species are in the danger of dying out.( )A.They areB.What isC.There isD.It is
正确答案:C 解析:本题的关键是数字信息的听辨和记录。根据原文“Around 380 million years ago,only 300 species groups were left in existence”,可以判断C是正确选项。 知识模块:句子听辨 听力原文:During the past 1. 65 million years, there have been four major episodes of global cooling, which resulte...
How Many Species Of Mammals Are There? We've done the research! Jump in to read about the ultimate mammals!
Nowadays, there are many celebrities who are famous for their glamour and wealth rather than achievements and this sets a bad example for young people. To what extent do you agree or disagree? Give reasons for your answer and include any relevant examples from your own knowledge or experience....
There are approximately 28,000 identified species of bony fish at this time. However, scientists believe they could be many more species to discover...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough ...
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