[单项选择]Passage Three

If the population of the Earth goes on increasing at its present rate, there will eventually not be enough resources left to sustain life on the planet. By the middle of the 21 century, if present trends continue, we will have used up all the oil that drives our cars, for example. Even if scientists develop new ways of feeding the human race, the crowded conditions on Earth will make it necessary for us to look for open space somewhere else. But none of the other planets in our solar system are capable of supporting life at present. One possible solution to the problem, however, has recently been suggested by an American scientist, Professor Carl Sagan. Sagan believes that before the Earth’s resources are completely exhausted, it will be possible to change the atmosphere of Venus and so create a new world almost as large as Ear A. they will be the only survivors of the human race B. they will have comfortable houses C. they will have much more spare than before D. they will be alive there forever 查看答案 更多"Passage Three If the popul"的相关试题: [单项选择]Passage Three If the population of the Earth goes on increasing at its present rate, there will eventually not be enough resources left to sustain life on the planet. By the middle of the 21 century, if present trends continue, we will have used up all the oil that drives our cars, for example. Even if scientists develop new ways of feeding the human race, the crowded conditions on Earth will make it necessary for us to look for open space somewhere else. But none of the other planets in our solar system are capable of supporting life at present. One possible solution to the problem, however, has recently been suggested by an American scientist, Professor Carl Sagan. Sagan believes that before the Earth’s resources are completely exhausted, it will be possible to change the atmosphere of Venus and so create a new world almost as large as Ear A. the Earth will have too many people on it B. we’ll have used all the oil that drives our cars C. there are not enough resources to sustain life on Earth D. other planets in solar system can support life now 查看答案 [单项选择] Passage Three A. To play the violin once again. B. To go to the United States. C. To apply for a scholarship. D. To have her performance taped. 查看答案 我来回答: 提交 最新试题 ●    内伤所致疮疡常见的病因：（） ●    [单选题]2.202.Q/W1373—2013《电力用户用电信息采集系统功能规范》中,系统（或设备） ●    下述属于胰腺外分泌功能的试验是（） ●    以下哪个是胰腺外分泌功能的直接试验（） ●    尿液管型是在肾小管和集合管腔中形成的圆管状体。常在肾小球肾炎、肾梗死、肾缺血性病变及肾病综合征等时出 ●    尿液管型是在肾小管和集合管腔中形成的圆管状体。属于肾炎症标志的是（） 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