(E) greater was coronary disease likely
15. Carnivorous mammals can endure what wold otherwise be lethal levels of body heat because they have a heat-exchange network which kept the brain from getting to hot.
A. which kept
B.that keeps
C.which has kept
D. that has been keeping
E. having kept
18. Unlike the nests of leaf cutters and most other ants,situated underground or in pieces of wood,raider ants make a portable nest by entwining their long legs to form “curtains” of ants that hang from logs or boulders,providing protection for the queen and the colony larvae and pupae
A. the nests of leaf cutters and most other ants
B. the nests of leaf cutters and most other ants,which are
C. leaf cutters and most other ants,whose nests are
D.leaf cutters and most other ants in having nests
E. those of leaf cutters and most other ants with nests
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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。
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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.