[单项选择]{{B}}第二篇{{/B}}

{{B}}Explorer of the Extreme Deep{{/B}} Oceans cover more than two-thirds of our planet. Yet, just a small fraction of the underwater world has been explored. Now, Scientists at the Woods Hole Oceanographic Institution (WHOI) in Massachusetts are building an underwater vehicle that will carry explorers as deep as 6,500 meters (21,320 feet). The new machine, known as a manned submersible or human-operated vehicle (HOV), will replace another one named Alvin which has an amazing record of discovery, playing a key role in various important and famous undersea expeditions. Alvin has been operating for 40 years but can go down only 4,500 meters (14,784 feet). It’s about time for an upgrade, WHOI researchers say. Alvin was launched in 1964. Since then, Alvin has worked between 200 and 250 da A. the earth. B. out space. C. the ocean. D. Mars. 查看答案 更多"{{B}}第二篇{{/B}}"的相关试题: [单项选择]{{B}}第二篇{{/B}} {{B}}Saving Money{{/B}} Where you save your money often depends on what you are saving for. If you are saving to buy a CD (光盘) or to go to a concert, then probably you would keep your money somewhere in your room. If you are saving for a big purchase like a mountain bike or a school trip, where would you save your money One place to save money is the bank. Putting your money in a savings account will help your money earn more money. If you put your money in a piggy bank (猪形储蓄罐), one year later you’ll still have the same amount of money you put in. If you put your money in a savings account, one year later, you’ll have more money than you put in. Why When you keep your money in a bank, your money earns interest. Interest is an amount of money a bank pays you A. in your room. B. in a piggy bank. C. in your pocket. D. in a savings account. 查看答案 我来回答: 提交 最新试题 ●    [单选题]病情继续发展可能出现的典型症状是 ●    画出纯铜晶体的一个晶胞，并完成下列工作： (1)计算(001)、(110)、(111)晶面的原子密度 ●    抵债资产原则上应采用招标方式进行处置。 ( ) ●    苏联开始暴露了他们在社会主义建设中的一些缺点和错误是在( )。 ●    [多选题]顺线路走时，应走两线路中间，并注意邻线的机车、车辆和货物装载状态。严禁在（）上行走。 ●    简述当代儿童发展观的基本内涵。 网站地图 我要搜题网  版权所有  ©2023  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： 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