【单选题】听力原文: In recent years, linguists(语言学家) and language teachers have begun to describe language according not only to grammatical structure, using traditional concepts and terms such as the imperative, b...
A.
Grammatical structure.
C.
Traditional concepts and terms.
【单选题】The authors purpose in writing this text is______.
A.
to describe recent environmental policy
B.
to point out the difficulties inherent in protecting national parks
C.
to call for the protection of national parks
D.
to analyze the current status of national parks
【单选题】Could you describe the speaker’s recent activity?
A.
He’s never lonely, for he has worked in his own company.
B.
He started a business after he had gained some experience.
C.
He’s upset about his own business for three years.
D.
He needed to spend three more years working with the IT firm.
【简答题】Scientists Alan M.Goldberg and Thomas Hartung describe recent advances in replacing the use of animals in toxicology(毒物学)testing.Improvements in cell and tissue culture technologies,for example,allow ...
【简答题】动态文本用来接收并显示变化的文本,动态文本可以作为( )来应用。
【单选题】醋酸在化学危险物品的分类属于()????
【简答题】读下面《南昆铁路地理位置示意图》及有关资料,回答下列问题。(16分) 我国的南昆线是1997年新开通的一条现代化铁路。铁路线穿过的地形区主要是云贵高原,地质条件复杂,多喀斯特地貌和地质灾害,这里贫困人口较多,同时也是少数民族聚居的地区。南昆线建成后对当地经济发展和人民脱贫致富有巨大的作用 (1)从影响铁路建设的区位因素考虑, 致使南昆铁路至今才得以成功修建的原因有哪些?(6分) 从自然条件方面分析...
【单选题】I don’t want to let too ___ people to work with us.