Birds have been said to be descended from certain birdlike dinosaur species with which they share distinctive structural features. The fossil record, however, shows that this cannot be so, since there are bird fossils much older than the earliest birdlike dinosaur fossils that have been found.
Which of the following is an assumption on which the argument relies?
A) The birdlike dinosaurs have no descendants.
B) There are no flightless dinosaur species that have the distinctive structural features shared by birds and birdlike dinosaurs.
C) There are no birdlike dinosaur fossils that are older that the bird fossils but have not yet been unearthed.
D) It could not have been the case that some birds were descendant from one of the bird like dinosaur species and other birds from another.
E) Birds cannot have been descended from dinosaur species with which the birds do not share the distinctive structural features.
王可达,可达GMAT教学总监,美国国家广播公司NB......
小安,江湖人称“安美女”、可达GMAT主讲名师。从......
英语教学专家,西方哲学专业硕士,学术背景深厚,知名......
更多内容请您加公共微信关注:
雅思(英语:IELTS),全称为国际英语测试系统(International English Language Testing System),是著名的国际性英语标准化水平测试之一。
留学,10余年培训经验,资深留学老师,提供更专业的培训全程服务,冲刺TOP名校。留学,考试辅导!24小时免费答疑
The Test of English as a Foreign Language,简称TOEFL
是由美国教育测验服务社(ETS)举办的英语能力考试,中文音译为“托福”。
Scholastic Assessment Test
中文名称为学术能力评估测试。由美国大学委员会(College Board)主办,SAT成绩是世界各国高中生申请美国名校学习及奖学金的重要参考。
Graduate Record Examination
中文名称为美国研究生入学考试,适用于除法律与商业外的各专业,由美国教育考试服务处(Educational Testing Service,简称ETS)主办.