转载每一集都介绍一种野生动物,每集约3分钟,语速适中。内容兼顾(语言学习)和(动物科普)两个方面,围绕动物们的生活习性展开,通过动物的照片和可爱的动画,不仅可以学习到简单实用的英文表达,还可以了解各种有趣的动物知识,是套非常难得的动物科普英文学习材料。,
The black widowspider is one of the mostfrightening spiders in theworld. Its venom(毒液)is very poisonous and issaid to be at least 15 times more poisonous than thevenom ofa rattlesnake(响尾蛇).Black widow spiders are found in many parts ofthe world, but in the United States they only ...
The black widow spider is considered the most venomous spider in North America. The venom of the female black widow spider is 15 times as toxic as the venom of the prairie rattlesnake. Only the female black widow is dangerous to humans; males and juveniles are harmless. ...
black widowThe spider genus Latrodectus, commonly called "widow spider," is found all over the world. Its venom contains alpha-latrotoxin, which leads to a massive presynaptic release of acetylcholine so, after a person has been bitten, crampy muscle spasms usually occur within an hour. There...
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The black widow spider is considered the most venomous spider in North America. The venom of the female black widow spider is 15 times as toxic as the venom of the prairie rattlesnake. Only the female black widow is dangerous to humans; males and juveniles are harmless. ...
3. insects " Black widow spiders eat insects that they catch in their webs such as flies, beetles, grasshoppers, and mosquitoes. " 可知,黑寡妇蜘蛛吃昆虫。 4. 15 times "The poison from a black widow spider is 15 times as poisonous as that from a rattlesnake."可知答案。 5. medical ...
widow spider is one of the most poisonous spiders in the world? But only the females can hurt you. The males are harmless. The female's poison is much stronger than that of a rattlesnake. A person who has been bitten can die if he or she does not get treatment. ...
WATCH: The Most Venomous Spider in North America A female black widow spider doesn't always kill her mate. But if he doesn't get away fast enough, she'll turn him into insect soup. Please be respectful of copyright. Unauthorized use is prohibited. ...
17_017_Meet the Animals 17_Black Widow Spider_高清 720P是动物英文科普动画(Meet the Animals)动物奇观 【共62集】的第17集视频,该合集共计62集,视频收藏或关注UP主,及时了解更多相关视频内容。