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The idea of a fish being able to produce electricity strong enough to light lamp bulbs-or even to run a small electric motor—is almost unbelievable, but several kinds of fish are able to do this. Even more strangely, this curious power has been acquired in different ways by fish belonging to very different families. Perhaps the most known are the electric rays, or torpedoes, of which several kinds live in warm seas. They possess on each side of the head,behind the eyes, a large organ consisting of a number of hexagonal-shaped cells rather like a honeycomb. The ceils are filled with a jelly-like substance, and contain a series of flat electric plates. One side, the negative side, of each plate, is supplied with very fine nerves, connected with a main nerve coming from a special part of the brain. Current gets through from the upp A. The electric eel. B. The electric catfish. C. The newly-born electric torpedoes. D. The fully-grown electric ray. 查看答案 更多"{{B}}Text 3{{/B}} The i"的相关试题: [单项选择] {{B}}Text 1{{/B}} The idea of a fish being able to generate electricity strong enough to light lamp bulbs--or even to run a small electricmotor-is almost unbelievable, but several kinds of fish are able to do this. Even more strangely, this curious power has been acquired in different ways by fish belonging to very different families. Perhaps the best known are the electric rays, or torpedoes (电鳐), of which several kinds live in warm seas. They possess on each side of the head, behind the eyes, a large organ consisting of a number of hexagonal shaped cells rather like a honeycomb. The cells are filled with a jelly-like substance, and contain a series of flat electric plates. One side, the negative side, of each plate, is supplied with very fine nerves, connected with a main nerve coming from a special part of the brain. Current passes from A. the capacity to generate electricity is the distinctive characteristic of the fish B. the current travels in an upward direction from the positive side to negative side in torpedo’s electric cells C. some fish can produce enough electricity to drive a number of electricmotors D. the torpedo’s electric cells have a shape with six sides 查看答案 [单项选择]{{B}}Text 3{{/B}} The idea of a fish being able to produce electricity strong enough to light lamp bulbs—or even to nm a small electric motor—is almost unbelievable, but several kinds of fish are able to do this. Even more strangely, this curious power has been acquired in different ways by fish belonging to very different families. Perhaps the most known are the electric rays, or torpedoes, of which several kinds live in warm seas. They possess on each side of the head, behind the eyes, a large organ consisting of a number of hexagonal-shaped cells rather like a honeycomb. The cells are filled with a jelly-like substance, and contain a series of flat electric plates. One side, the negative side, of each plate, is supplied with very fine nerves, connected with a main nerve coming form a special part of the brain. Current gets through from the A. The electric eel. B. The electric catfish. C. The newly-born electric torpedoes. D. The fully-grown electric ray. 查看答案 我来回答: 提交 最新试题 ●    [单选题]【A1型题】寒疝属于血虚者,治用 ●    [多选题]CRH1 ●    [判断题]高压业扩中间检查（上门服务）宜使用现场作业工作卡。 ●    [单选题]28．胃是消化道中最膨大的部位，成人的胃一般可容纳食物 ●    [单选题](第三十七条)救援人员高空救助时,可根据作业环境,铺设( )、设置( ),提升 ●    [单选题]其他预告色灯信号机（不含遮断信号机的预告信号机）显示一个（）灯光，表示主体信号机在关闭状态 网站地图 我要搜题网  版权所有  ©2024  湘ICP备18016427号   购买搜题卡查看答案 [会员特权] 开通VIP， 查看 全部题目答案 [会员特权] 享免全部广告特权 推荐91天 ¥36.8 ￥80元 31天 ¥20.8 ￥40元 365天 ¥88.8 ￥188元 请选择支付方式 微信支付 支付宝支付 点击支付即表示同意并接受了《购买须知》 立即支付 系统将自动为您注册账号 已有账号登录 找回账号密码 请使用微信扫码支付 订单号： 截图扫码使用小程序[完全免费查看答案] 前往小程序 请不要关闭本页面，支付完成后请点击【支付完成】按钮 支付完成 取消支付 恭喜您，购买搜题卡成功 系统为您生成的账号密码如下： 账号 密码 重要提示：请拍照或截图保存账号密码！ 我要搜题网官网：https://www.woyaosouti.com 我已记住账号密码