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下面有3篇短文，每篇短文后有5道题。请根据短文内容，为每题确定1个最佳选项。
{{B}}第一篇{{/B}}

{{B}} Population Densities{{/B}} The average population density (密度) of the World is47 persons per square mile. Continental densities range from no permanent inhabitants in Antarctica to 211 per square mile in Europe. In the western hemisphere, population densities range from about 4 per square mile in Canada to 675 per square mile in Puerto Rico. In Europe the range is from 4 per square mile in Iceland to 831 per square mile in the Netherlands. Within countries there are wide variations of population densities. For example, in Egypt, the average is 55 persons per square mile, but 1,300 person inhabit each square mile in settled portions where the land is arable (适合耕种的). High population densities generally occur in reg A. heavy industrialization. B. intense agriculture. C. a low percentage of cultivated land. D. large cities. 查看答案 更多"下面有3篇短文，每篇短文后有5道题。请根据短文内容，为每题确定1个最佳"的相关试题: [单项选择] 下面有3篇短文，每篇短文后有5道题。请根据短文内容，为每题确定1个最佳选项。 第一篇 A Society Without a Formal Authority In the seventeenth century, European soldiers who came across some Indian groups in the western Great Lakes found that several native tribes (部落) were living in the area without a formal leadership system. They appeared to be "quite friendly with each other without a formal authority Not only did the Indians appear to lack a formal system of authority, but they also deeply hated any efforts to control their actions. All members of the tribes knew what was required of them by lifelong (一生的) familiarity with the tasks of the area. These tasks tended to be simple, since the Indians’ rate of social change was slow. Thus, although subgroups such as soldiers had recognized leaders, no real authority was required. Rather than giving 查看答案 [单项选择] 下面有3篇短文，每篇短文后有5道题，请根据短文内容，为每题确定1个最佳选项。 {{B}}第一篇{{/B}} Common Problems, Common Solutions The chances are that you made up your mind about smoking a long time ago — and decided it’s not for you. The chances are equally good that you know a lot of smokers — there are, after all about 60 million of them, work with them, and get along with them very well. And finally it’s a pretty safe bet that you’re open-minded and interested in all the various issues about smokers and non-smokers — or you wouldn’t be reading this. And those three things make you incredibly(难以置信地) important today. Because they mean that yours is the voice — not the smoker’s and not the anti-smoker’s — that will determine how much of society’s efforts should go into building walls that separate us and h A. Anti-smoking propaganda. B. Diseases striking nonsmokers as well as smokers. C. Rules and regulations that prohibit smoking. D. Separation of smokers from nonsmokers. 查看答案 我来回答: 提交 最新试题 ●    [判断题]修配装配法一般适用于大批量生产。 ●    血清中含量最高的免疫球蛋白是（） ●    [单选题]关于冠心病的流行病学特点，错误的是 ●    [判断题]借调人员由该人员当月由借出的单位进行监测；管理培训生由当月所在轮岗单位进行监测。 ●    [判断题] 线路长度每超过500m时,须在适当位置.耐张杆)增设验电接地环。( ) ●    [多选题](1.00分)建筑节能分部,包含()子分部 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