[谁知道有关于描写声音的作文最好能是描写雨的音乐也可以字数]聆听生活中的种种声音 清晨，太阳醒了。早起的公鸡伴着朝阳开始打鸣，欢快的小鸟叽叽喳喳地在窗边唱歌，小狗汪汪地叫着，蜜蜂嗡嗡地飞舞着……所有的动物都迎着朝阳发出不同的声音，...+阅读
这是专业描述
Snakesare elongate legless carnivorous reptiles of the suborder Serpentesthat can be distinguished from legless lizards by their lack of eyelids and external ears. Like all squamates, snakes are ectothermic amniote vertebrates covered in overlapping scales. Many species of snakes have skulls with many more joints than their lizard ancestors, enabling them to swallow prey much larger than their heads with their highly mobile jaws. In order to accommodate their narrow bodies, snakes' paired organs (such as kidneys) appear one in front of the other instead of side by side, and most have only one functional lung. Some species retain a pelvic girdle with a pair of vestigial claws on either side of the cloaca.
Living snakes are found on every continent except Antarctica and most islands. Fifteen families are currently recognized comprising 456 genera and over 2,900 species.[1][2]They range in size from the tiny, 10 cm long thread snake to pythons and anacondas of up to 7.6 metres (25 ft) in length. The recently discovered fossil Titanoboa was 13 metres (43 ft) long. Snakes are thought to have evolved from either burrowing or aquatic lizards during the Cretaceous period (c 150 Ma). The diversity of modern snakes appeared during the Paleocene period (c 66 to 56 Ma).
Most species are non-venomous and those that have venom use it primarily to kill and subdue prey rather than self-defense. Some possess venom potent enough to cause painful injury or death to humans. Those which are non-venomous either swallow prey alive or kill it via constriction.
以下为关联文档：
谁知道关于新学期打算的作文800字左右新年过去，寒假马上就要结束了。我们将以新的精神面貌跨进新的学期。 新的学期，是我们四年级最后一个学期。在这个学期里，我要百尺竿头，更进一步。 首先，上课的时候，我要认真听讲，不...
司马光砸缸故事英文用小学水平来写One day, Si Maguang and a few children were playing in the garden. There was a jar. It was full of water. A boy climbed onto it and played. Unluckily, he fell i...
英文版司马光砸缸的故事A Story About A Smart Boy （司马光砸缸） 李冉 Once upon a time, four children, three boys and one beautiful giril, played games in the garden. They played the very...
司马光砸缸的故事英文On one occasion, he's playing with other children in the backyard. The yard has a large water tanks, have a baby climb to the cylinder on the play, accidentally...
急急急求帮写英文版司马光砸缸的结尾The story that Si Ma Guang cracked the tank to save his friend proofs the truth that sometimes we need to think outside the box and we can always find a way out...
关于早餐的作文英文80字以上，手工写作 Breakfast is very important to one's health. People should have a good breakfast every day. To have a healthy and nutritious breakfast, you can...
关于早餐的英文作文my favorite breakfast is British style, including cereals, milk, bread, butter, bacon and some jams maybe. sandwich is also my best. one good thing about Britis...
高中英文导游词作文一百词左右Ladies and Gentlemen: I am pleased to serve as your guide today. This is the palace museum; also know as the Purple Forbidden City. It is the largest and most w...
公园秋游的英文导游词winter has yet to come,and the fall is very attractive. can you feel the sign when the leaves falling off the trees? can you see touch the loneliness when the a...
