[单项选择]{{B}}Passage Four{{/B}}

Elephants don’t forget—at least, female elephants don’t. Elephant families are matriarchal. And the social knowledge gained by the oldest females is the key to a family group’s survival, according to a study published in April by Karen McComb, a biologist at Sussex University in England. Elephants announce their presence by making a deep, long sound, a practice referred to as contact calling (联络呼叫). An unfamiliar call may mean that an elephant from outside the family group is nearby. A stranger can cause trouble, interrupting feeding or disturbing the young. So an elephant {{U}}matriarch{{/U}} signals the family to gather around her; then they all lift their trunks in the air to smell the unfamiliar caller. False alarms can disturb the group and take time and energy away from feeding, so survival may depend in part on g A. When they are feeding the young. B. When they see a familiar elephant. C. When they are giving birth to baby elephants. D. When the leading elephant gives out a warning. 查看答案 更多"{{B}}Passage Four{{/B}} "的相关试题: [单项选择]{{B}}Passage Four{{/B}} Elephants don’t forget—at least, female elephants don’t. Elephant families are matriarchal. And the social knowledge gained by the oldest females is the key to a family group’s survival, according to a study published in April by Karen McComb, a biologist at Sussex University in England. Elephants announce their presence by making a deep, long sound, a practice referred to as contact calling (联络呼叫). An unfamiliar call may mean that an elephant from outside the family group is nearby. A stranger can cause trouble, interrupting feeding or disturbing the young. So an elephant {{U}}matriarch{{/U}} signals the family to gather around her; then they all lift their trunks in the air to smell the unfamiliar caller. False alarms can disturb the group and take time and energy away from feeding, so survival may depend in part on g A. An old member of an elephant family. B. A female head of an elephant family. C. A wise elephant. D. A large elephant. 查看答案 [单项选择] Passage Four Elephants who paint aren’t new. Paintings by Ruby, an Asian elephant who lived at the Phoenix Zoo in Arizona, sold for up to $ 5,000 in the late 1980s, said Dick George, a consultant with the zoo. "Ruby was about seven months old when she first came to the zoo," said George. "She lived with a goat and some chickens, but she didn’t have an elephant companion for a number of years. She spent a lot of time drawing in the dirt with a stick to make her days more stimulating. Her keeper bought her some art sup- plies." George said, "Ruby was excited about painting right from the beginning." The elephants at the art academies in the Southeast Asia are taught to hold a paintbrush with the tip of their trunks. Initially, the keeper guides the elephant’s trunk over the canvas(画布) and offers rewards for good performance. "It only takes a few hours to a day to teach them," said Mia F A. who was sold for a price as high as $ 5,000 B. who was famous for being the first painting elephant C. whose paintings sold for as high as $ 5,000 D. who started painting in the late 1980s 查看答案 [单项选择]Passage Four 　　　　　　　　　　　　　　　　　　　　　　　　　　Software Systems Specialist Work Schedule: Full Time Salary: $ 62,500- $ 92,000* Location: Washington, DC metropolitan area * Employees within the organization have opportunities for additional salary advancement to the Expert level. Software Systems Specialists are responsible for the planning, implementation and optimization of a wide variety of leading-edge systems software on Unix and Linux-based enterprise class servers used to meet critical intelligence needs. Team members are actively involved in the deploym A. $62,500 B. $92,000 C. less than $62,500 D. more than $92,000 查看答案 [单项选择]Passage Four Sports and games make our bodies strong, prevent us from getting too fat, and keep us healthy. But these are not their only use. They give us valuable practice in making eyes, brain and muscles work together. In tennis, our eyes see the ball coming, judge its speed and direction and pass this information on to the brain. The brain then has to decide what to do, and to send its orders to the muscles of the arms, legs, and so on, so that the ball is met and hit back where it ought to go. All this must happen with very great speed, and only those who have had a lot of practice at tennis can carry out this complicated chain of events successfully. For those who work with their brains most of the day, the practice of such skills is especially useful. Sports and games are also very useful for character-training. In their lessons at s A. use, first, our eyes, then the brain and finally the muscles B. make our eyes, brain and muscles work almost at the same time C. use mainly the arms and legs to hit D. use mainly the muscles so that the ball is met and hit back 查看答案 [单项选择]Passage Four What is this passage about a. The development of computer technonogy. b. The development of Symantec Corporation. c. Cyber attacks. d. Computer techniques. 查看答案 我来回答: 提交 最新试题 ●    [单选题]丹毒 ●    [单选题]消息服务（短信）的账户变动即时服务是指（ ）。 ●    某电视台拟将他人已出版的《养兔技术》VC.D.光盘在该电视台的“致富”节目中播放，那么，该电视台（） ●    [单选题]雌性最重要的孕激素是 ●    [单选题]高速公路机电系统全景库养护定额库的定额基价有( )类。 (0.8分) ●    [多选题]根据综合录井仪检测或联机计算的()数据，可以预测本井地层压力异常情况。 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