单选题Over-cultivation and a long period of erosion has reduced the ______ of much of the country's farmland. A.sufficiency B.fertility C.prosperity D.mobility

单选题What is the ______ of going by boat when the plane costs no more and is quicker?

单选题We had come here to escape a ______ summer heat wave and to examine firsthand some of the park's problems.

单选题Main Street is the ______ stop for this bus route.

单选题The old man took a great______ in collecting stamps.

单选题You should ______ at least three days for the journey.

单选题If you would like to send a donation, you can______a cheque to the organization Feed the Children.

单选题The strong scent of Kate's perfume ______ the air in the small room. A. radiated B. permeated C. extracted D. dispersed

单选题To take part in a space flight would be an exciting______.

单选题When the revolutionary situation changes, revolutionary tactics must change______.

单选题When I heard that Mrs. Thacher resigned, I called her. I wanted her to know that my heart was ______ her. A. for B. of C. in D. with

单选题Despite warnings from his parents and teacher, Stevenson is______to computer games.(2006年中国矿业大学考博试题)

单选题The hall was supported by six thick ______.

单选题Government is not made in virtue of natural rights．which may and do exist in total independence of it, and exist in much greater clearness, and in a much greater degree of abstract perfection；but their abstract perfection is their practical defect．By having a right to everything, men want everything．Government is a contrivance of human wisdom to provide for human wants．Men have a right that these wants should be provided for by this wisdom． Among these wants is to be reckoned the want, out of civil society,of a sufficient restraint upon their passions．Society requires not only that the passions of individuals should be subj ected, but that even in the mass and body,as well as in the individuals．the inclinations of men should frequently be thwarted, their will controlled, and their passions brought into subjection．This can only be done by a power out of themselves；and not, in the exercise of its function, subject to that will and those passions which is its Office to bridle and subdue．In this sense, the restraints on men, as well as their liberties, are to be reckoned among their rights． But because the liberties and the restrictions vary with times and circumstances．and admit to infinite modifications, they cannot be settled upon by any abstract rule；and nothing is so foolish as to discuss them upon that principle． The moment you abate anything from the full rights of men, each to govern himself,and suffer any artificial, positive limitation upon those rights, from that moment the whole organization of govemment becomes a consideration of convenience．This is which makes the constitution of a state, and the due distribution of its powers, a maRer of the most delicate and complicated skill．It requkes a deep knowledge of human nature and human necessities, and of the things that facilitate or obstruct the various ends, which are to be pursued by the mechanism of civil institutions．The state is to have recruits to its strength, and remedies to its distempers．What is the use of discussing a man's abstract right to food and medicine?The question is upon the method of procuring and administering them．In that deliberation, I shall always advise to callin the aid of the farmer and the physician, rather than the professor of metaphysics．

单选题Despite an overlay of quasi-literary French vocabulary stemming from thc Norman Invasion of 1066, the daily vocabulary of English remained Germanic, ______ its grammatical structure.

单选题What does the passage mainly convey to the readers?

单选题[此试题无题干]

单选题It is believed that ______.