单选题The scientist decided he didn't want to be______with the project, and left.(2004年湖北省考博试题)

单选题The critic's assessment of the book is that it is beautifully written.(2004年秋季电子科技大学考博试题)

单选题The primordial fireball would have been a dense roiling stew of radiation and elementary particles condensing out of the ______ energy, annihilating each other, recondensing, then colliding and disappearing all over again.

单选题It will be very helpful if parents have seen the school environment and know what kind of tasks the school will______on the daily life of their child.(2013年10月中国科学院考博试题)

单选题According to the recent census, under-18s ______ nearly 95% of the single children in Chinese families.

单选题A rigorous alertness (must be) (adhered) when (notetaking) with the inessential ignored (and) the superfluous eliminated.

单选题Pupils often want to sit next to their particular friend and many classroom activities involve moving about, but even relatively small alterations can make______to the visual comfort of pupils with sight defects. A. a difference B. an interference C. a modification D. an impact

单选题This book should be well-recommended within the ______ of anyone who has studied German for four years.

单选题The Space Age______ in October 1957 when the first artificial satellite was launched by the Soviet Union.(2011年四川大学考博试题)

单选题The number of tickets available will be ______ by the size of the stadium.

单选题Nobody at work is very happy, because last week's sales figures were pretty ______.

单选题Sex prejudices are based on and justified by the ideology that biology is destiny. According to this ideology, basic biological and psychological differences exist between the sexes. These differences require each sex to play a separate role in social life. Women are the weaker sex both physically and emotionally. Thus, they are naturally suited, much more so than men, to the performance of domestic duties. A woman"s place, under normal circumstances, is within the protective environment of the home. Nature has determined that women play caretaker roles, such as wife and mother and homemaker. On the other hand，men are best suited to go out into the competitive world of work and politics, where serious responsibilities must be taken on. Men are to be the providers; women and children are "dependents". The ideology also holds that women who wish to work outside the household should naturally fill these jobs that are in line with the special capabilities of their sex. It is thus appropriate for women, not men, to be employed as nurses, social workers, elementary school teachers, household helpers, and clerks and secretaries. These positions are simply an extension of women"s domestic role. Informal distinctions between "women"s work" and "men"s work" in the labor force, according to the ideology, are simply a functional reflection of the basic differences between the sexes. Finally, the ideology suggests that nature has worked her will in another significant way. For the human species to survive over time, its members must regularly reproduce. Thus, women must, whether at home or in the labor force, make the most of their physical appearance. So goes the ideology. It is, of course, not true that basic biological and psychological differences between the sexes require each to play sex-defined roles in social life. There is ample evidence that sex roles vary from society to society, and those role differences that to exist are largely learned. But to the degree people actually believe that biology is destiny and that nature intended for men and women to make different contributions to society, sex-defined roles will be seen as totally acceptable.

单选题Although it was written over one hundred years ago, it is still the______ history text in many schools.

单选题-- Would you like a cake or a banana? -- ______is OK. I really don't mind.

单选题"They said what we always knew," said an administration source, ______.

单选题Today, a high-level finance manager is just as likely to be a casual-looking 21-year-old as a balding executive. They have all either started their own companies or head a division within an existing firm. Most are under 30. Many of them share a tendency to think, speak and act fast. A detailed psychological study carried out recently on young business start-uppers aged over 25 revealed some common characteristics. The head psychologist at the University of Northumbria, Dr. Martyn Dyer-Smith, says "We found that they are opportunists. They have that entrepreneurial ability to take whatever is in front of them and turn it to their advantage. Any fool can make US $ 2 if they are in the right place at the right time, what is much harder is to actually plan their business. Originally I had a hypothesis that they planned a long time ahead, but I was wrong. What came across was a surprisingly short planning time. They took the opportunities as and when they came up." What cannot be underestimated, though, is self-confidence. "There is an amazing, almost abnormal, belief in themselves and (they) go very much on intuition." Says Dyer-Smith. While there is no typical pattern to what puts someone in the fast lane, there are some common threads: living up to the expectations of parents, channeling excessive amounts of energy into business, or finding a way to overcome personal barriers such as dyslexia (a reading disability) or learning difficulties, for example. The biggest surprise was the lack of young women. This was particularly unexpected, given the recent publicity about how girls are performing better than boys at school and becoming more confident and ambitious. But young women are opting for more secure careers rather than gambling with their future. With only a handful of female role models, some girls are not even considering being their own boss, let alone working on a concept fresh out of school, according to Dr Susan Vinnicombe, director of the center for the Development of Women Business Leader. "Women are going more into the corporate structure and doing well there. But perhaps the reason that they are not doing business for themselves at an earlier age is because women's attitudes are different. They perceive risk in a different way to men, who are not worried about borrowing huge amounts of money if it's going to help their business in the long term. Women are more cautious and more hesitant ," she says. Vinnicombe sees the lack of female entrepreneurs as part of a larger problem about women and the IT industry. Given that the computer world is one of the key areas for growth, where youth is an asset, it is "remarkable" that so many women are missing out on it. "The number of women in IT has actually dropped in the past 10 years. There is a real problem with attracting them to the IT industry, as girls don't seem to want to do it at university. It's become such a worrying issue that I know the government is looking into ways to attract them./

单选题At the end of the passage, the author implicates ______.

单选题David often sits in a small bar, drinking and smoking considerably more ______.

单选题The millions of calculations (involved) , (had they) been done by hand, would (lose) all practical value (by the time) they were finished.