[单项选择]
{{B}}Passage 1{{/B}}

We all know that it is possible for ordinary people to make their homes on the equator (道), although often they may feel uncomfortably hot there. Millions do it. But as for the North Pole (北极)——we know that it is not only a dangerously cold place, but that people like you and I would find it quite impossible to live there. At the present time only the scientists and explorers can do so, and they use special equipment. (76) {{U}}Men have been travelling across and around the equator on wheels, on their feet or in ships for thousands of years; but only a few men, with great difficulty and in very recent time, have ever crossed the ice to the North Pole. {{/U}}So it may surprise you to learn that, when traveling by air, it is really safer to fly over the North Pole than over the equator. Of course, it is not true about landings A. in warm air B. in cold air C. when it reaches the polar region D. only when the clouds are down low ______ 查看答案 更多"{{B}}Passage 1{{/B}} We"的相关试题: [单项选择]Passage Four We all know that people sometimes change their behavior when someone is looking their way. Now, a new study reported online on April 2nd in Current Biology shows that jackdaws —birds related to crows with eyes that appear similar to human eyes — can do the same. “Jackdaws seem to recognize the eye’s role in visual perception, or at the very least they are extremely sensitive to the way that human eyes are oriented,” said Auguste von Bayern, formerly of the University of Cambridge and now at the University of Oxford. When presented with a preferred food, hand-raised jackdaws took significantly longer to retrieve the reward when a person was directing his eyes towards the food than when he was looking away, according to the research team led by Nathan Emery of the University of Cambridge. The birds hesitated only when the person in question was unfamiliar and thus potentially threatening. In addition, the birds were able to interpret human communicative g A. When the feeder is looking away from the food. B. When the feeder is unfamiliar to the bird. C. When the. feeder holds the food in his hand. D. When the feeder is looking at the food. 查看答案 [单项选择]Passage 3 We all know that the normal human daily cycle of activity is of some 748 hours’ sleep alternating with some 16,417 hours’ wakefulness and that, broadly speaking, the sleep normally coincides with the hours of darkness. Our present concern is with how easily and to what extent this cycle can be modified. The question is no mere academic one. The ease, for example, with which people can change from working in the day to working at night is a question of growing importance in industry where automation calls for round the-clock working of machines. It normally takes from five days to one week for a person to adapt to a reversed routine of sleep and wakeful-ness, sleeping during the day and working at night. Unfortunately, it is often the case in industry that shifts are changed every week: a person may work from 12 midnight to 8 a. m. A. Because few people like to reverse the cycle of sleep and wakefulness. B. Because sleep normally coincides with the hours of darkness. C. Because people are required to work at night in some fields of industry. D. Because shift work in industry requires people to change their sleeping habits. 查看答案 [单项选择]Passage 4 　　We all know that the normal human daily cycle of activity is some 7—8 hours’ sleep alternating with some 16—17 hours’ wakefulness and that, broadly speaking, the sleep normally coincides with the hours of darkness. Our present concern is how easily and to what extent this cycle can be modified. The question is no more academic one. The ease, for example, with which people can change from working in the day to working at night, is a question of growing importance in industries where automation calls for round-the-clock working of machines. It normally takes from five days to one week for a person to adapt to a reversed routine of sleep and wakefulness, sleeping during the day and working at night. Unfortunately, it is often the case in industries where shifts are changed every week; a person may work from 12 midnight to 8 a.m. one 查看答案 [单项选择] {{B}}Passage 1{{/B}} We all know that it is possible for ordinary people to make their homes on the equator (道), although often they may feel uncomfortably hot there. Millions do it. But as for the North Pole (北极)——we know that it is not only a dangerously cold place, but that people like you and I would find it quite impossible to live there. At the present time only the scientists and explorers can do so, and they use special equipment. (76) {{U}}Men have been travelling across and around the equator on wheels, on their feet or in ships for thousands of years; but only a few men, with great difficulty and in very recent time, have ever crossed the ice to the North Pole. {{/U}}So it may surprise you to learn that, when traveling by air, it is really safer to fly over the North Pole than over the equator. Of course, it is not true about landings A. feeling uncomfortably hot on the equator B. flying over the North Pole C. flying over the equator D. making homes on the equator 查看答案 [单项选择]{{B}}Passage 18{{/B}} We all know that it is possible for ordinary people to make their homes on the equator (赤道), although often they may feel uncomfortably hot there. Millions do it. But as for the North Pole (北极)-we know that it is not only a dangerously cold place, but that people like you and me would find it quite impossible to live there. At the present time only the scientists and explorers can do so, and they use special equipment. Men had been traveling across and around the equator on wheels, on their feet or in ships for thousands of years; but only a few men, with great difficulty and in very recent time, have ever crossed the ice to the North Pole. So it may surprise you to learn that, when traveling by air, it is really safer to fly over the North Pole than over the equator. Of course, this is not true about landings in the polar regi A. a good place to land at by plane B. a good place to fly over C. a difficult place to fly over D. a good place to live in 查看答案 我来回答: 提交 最新试题 ●    [单选题]依据信息论中的香侬公式，可以获知信道的带宽或信道中的信噪比（），则信息的极限传输速率就（） ●    烧伤伤及皮肤真层属于 ●    进行性吞咽困难（） ●    [单选题]系统恢复正常或工程结束后（ ）小时之内应完成异动流转手续。 ●    [判断题]集中供电车列的调车作业，其车辆的摘挂和软管的摘结由列检负责。 ●    马克思主义解决民族问题的基本原则是( ) 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