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【单选题】
短文 3 It is one of nature’s great ironies that the availability of nitrogen in the soil frequently sets an upper limit on plant growth even though the plants leaves are bathed in a sea of nitrogen gas. The leguminous plants --- among them crop plants such as soybeans, peas, alfalfa, and clover --- have solved the nitrogen supply problem by entering into a symbiotic relationship with the bacterial genus Rhizobium . Question 4 Which of the following situations is most closely analogous to the situation described by the author as one of nature’s great ironies?A.
That of a farmer whose crops have failed because the normal midseason rains did not materialize and no preparations for irrigation had been made.
B.
That of a long-distance runner who loses a marathon race because of a wrong turn that cost him twenty seconds.
C.
That of a motorist who runs out of gas a mere five miles from the nearest gas station.
D.
That of shipwrecked sailors at sea in a lifeboat, with one flask of drinking water to share among them.
E.
That of travelers who want to reach their destination as fast and as cheaply as possible, but find that cost increases as travel speed increases.
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【单选题】Why does the author say 'publishers are not in business to lose money'?
A.
For convincing readers that the publishing is a profitable business.
B.
For persuading people to donate when they read the free content online.
C.
For warning the readers that the free stuff online may not last forever.
D.
For making people trust that paper publications won't be totally gone.
【单选题】Why does the man mention tigers and pandas?
A.
He once had a job in a zoo.
B.
They're familiar examples of endangered species.
C.
He's interested in the genetics of mammals.
D.
They also become attached to humans.
【单选题】关于论文答辩以下错误的是（ ）
A.
论文答辩是考察学生知识与能力综合水平的主要环节
B.
学位论文的报告，是以专业或学科成立的答辩委员会对学生论文的集体审查
C.
报告与答辩要注意仪表仪态、语言表达、时间掌握和多媒体的使用
D.
学位论文的答辩，是以专业或学科成立的学术委员会对学生论文的集体审查
E.
报告与答辩从撰写报告提纲和答辩稿、制作PPT等演示文件或实物、模拟报告等方面做好准备工作
【单选题】---_____ does she like pandas? ---Because they’re very cute.
A.
What
B.
How
C.
Where
D.
Why
【简答题】 Why does Demarest refer to visits to the barber, the dentist, and the doctor as "Faustian encounters" (para. 2)?
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