单选题She dropped her voice as she started to ______ that she had fallen in love with the poet.

单选题We were working ______ time to get everything ready for the exhibition.

单选题No adults would like to admit that they are weaker than children {{U}}to solve sticky and puzzling problems{{/U}}.

单选题Take the stalemate between the administration and the oil companies for example.

单选题Nacre is a substance that is ______

单选题Training programs for the U.S. Peace Corps are conducted in the country or region ______the volunteer will serve.

单选题She ______ some salt on her food to make it taste better. A. sprinkled B. sprayed C. scattered D. dispersed

单选题When an organism is completely encapsulated and preserved, it becomes a fossil, therefore turning into evidence of things that once lived.

单选题The affluent middle class created by the Asian boom now take up over from exports as the main engine of growth. A. take over from exports B. take from exports C. take exports D. takes exports

单选题A large part of effective leadership is dependent on something called "style". But style is difficult to teach, and what makes one leader great and another mediocre is not easily defined. Leadership always implies power, and a broad definition in this context is that leadership includes the power to influence thoughts and actions of others in such a way that they achieve higher satisfaction and/or performance. Over the past century, there have been three major approaches to understanding leadership. Identifying leadership traits, or the physical and psychological characteristics of leaders, was the first formal approach, and had a lot of intuitive appeal. It owed its origins to the mm of the century (about 1904) when trait studies began. At this time most American leaders came from certain wealthy families, the vast majority were white males, and there were some social norms about what leaders looked like (tall, square jaw, well groomed, etc.). The original assumption that "leaders are born, not made" has been discredited, because there were too many exceptions to the traits to give them any credibility. Beginning after World War II, in sharp contrast to the trait approach, the behavioral approach looked at what a leader does, what behaviors leaders use that set them apart from others. This approach assumed that leadership could be learned. Virtually all of the studies focused on classifying behaviors according to whether they fell into a process or "people approach" (satisfying individual needs), or a "task approach" (getting the job done). The basis for this classification was in the discovery in social psychology that every group needs someone to fulfill both these roles in the group for it to be effective. The earliest of these studies began in Ohio State University and the University of Michigan in the late 1940s. Many of the early trait and behavioral writers tried to make their ideas applicable to all leadership situations. The earliest situational approach to leadership was developed in 1958. This approach strived to identify characteristics of the situation that allowed one leader to be effective where another was not. The trend later developed toward the third approach, understanding the unique characteristics of a situation and what kind of leadership style best matches with these.

单选题He noticed that Joan was studying him closely, but her expression gave away nothing of what she was thinking.

单选题I find that most children's books are about boys, men and male animals, and most deal about male adventures.

单选题The old man sat before the fire in a trance, thinking of his past life. A. in a special position B. in a cozy state C. in a sleepy state D. in a meditative state

单选题One impact that the burning of ______ fuels has had on the Earth's environment has been the increase of carbon dioxide in the earth's atmosphere.

单选题A program to mature the technologies needed to achieve an economically reusable launch vehicle is underway in the U. S.

单选题My grandfather Paul Goodman ______ to my endless of music.

单选题Racing the clock every day is such an exhausting effort that when I actually have a few free moments, I tend to collapse. A. fall down B. fall ill C. fall out D. fall behind

单选题The security Urationale/U is very important for any scientific or technological endeavor because the budget of security- related programs is limited usually by that nation's comprehension of a hazard or redefine the idea of national security.

单选题The two elements______water is made are oxygen and hydrogen.

单选题All______is needed is a continuous supply of fuel oil.