皮皮学，免费搜题
登录
搜题
【单选题】
The first people to inhabit North America came from Asia. Scientists had hypothesized that these people traveled across a now-submerged landmass that connected the two continents until 14,000 years ago, depending for food only on the land animals they hunted as they traveled. Recent discoveries have led to the new hypothesis that the first people came by boat a-long the southern shore of the landmass, eating fish and sea mammals. Which of the following, if true, most strongly supports the new hypothesis by casting doubt on the earlier hypothesis?A.
The landmass connecting North America and Asia extended very far to the north.
B.
In Europe, maritime cultures primarily dependent on the sea for food developed no earlier than 10,000 years ago.
C.
People living in Asia at the time the two continents were connected hunted land animals for food.
D.
The landmass was so bitterly cold that its vegetation would have been too sparse to support land animals.
E.
Sophisticated and mature North American and Asian cultures that display great similarities to each other existed as far back as 8,000 years ago.
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】某35kV的变电所，35kV侧采用桥形接线（外桥），10kV侧单母线分段接线，一段母线所接负荷为31000kVA，其中一级负荷为10000kVA、二级负荷为11000kVA，一般负荷为10000kVA。另一段母线所接负荷为38000kVA其中一级负荷为8000kVA、二级负荷为10000kVA、一般负荷为20000kVA。画出该变电所的电器主接线，并分析确定1号、2号主变压器容量应选择下列哪住数值...
A.
1号主变压器31500kVA、2号主变压器31500kVA
B.
1号主变压器31500kVA、2号主变压器40000kVA
C.
1号主变压器40000kVA、2号主变压器40000kVA
D.
1号主变压器50000kVA、2号主变压器50000kVA
【简答题】我国时期集成和发展了“以五声听狱讼，求民情”的主观臆断的审判方法。()
【简答题】阅读理解。 The karaoke machine is the most annoying invention in Britain,a survey (民意调 查) for the government found.It found that the Japanese invention topped a list of inventions that people wished had ne...
【简答题】下列网站访问统计指标中，哪些属于网站流量指标 A独立访问者数量 B每个页面的平均访问时长 C用户访问高峰期 D每个访问者的页面浏览数
相关题目：
参考解析：
知识点：
题目纠错 0
发布
