单选题Which color is the most helpful for keeping a good mood? 

单选题Passage Two Questions 18 to 20 are based on the passage you have just heard. （）

单选题Mr. Wright was the ______ president of Ace Construction Company.

单选题With the bridge ______, there was nothing for it but to swim.

单选题The International Olympic Committee rejects the accusations that Beijing's budget-cutting move might ______ its preparation for the games.

单选题It isn't so much whether he works hard; the question is whether he works ______.A. above allB. in allC. at allD. after all

单选题The American Civil War was a very sad time for the United States. The people of the country were divided into (21) sides: The North and The South. Each side had its own army. The southern army was called the Confederate Army, and the northern (22) was called the Union Army. Many people died for both the North and South. The schools for the deaf had many problems during the Civil War. There are many stories about that (23) in history. Some schools for the deaf had to close during the Civil War. The (24) of many were taken over by the Confederate or Union army and occupied by (25) . The Tennessee School even became a hospital and is now a national landmark. Some schools (26) because the teachers joined the war. At the Kentucky School, the superintendent’s son (27) to join the Union Army. He died during battle and never returned. Teachers at the Tennessee School also resigned, but they joined the Confederate Army. A sad (28) took place in North Carolina during the Civil War. A 55-year-old man was out walking one day. He was (29) his way home when a soldier saw him. The soldier (30) the man to stop. The man was deaf and did not hear the soldier’s command. The soldier shot the man and (31) him. In southeastern states, every school for the deaf closed except one. The Kentucky School for the Deaf remained (32) . Its superintendent did not allow soldiers to occupy the school. He told officers from both armies (33) would happen if they moved into the school. He warned the officers that all of the teachers would resign and the soldiers would have to take care of the deaf students. He (34) both sides, so the Kentucky School for the Deaf was (35) occupied by either the Confederate or Union troops!

单选题None of the managers said that,______?

单选题They greeted his proposal with ______ and refused to give it serious study.

单选题This question ______ at our next meeting. A. will bring up B. has brought up C. will be brought up D. has been brought up

单选题My boss insists on seeing everything in______before he makes a decision.

单选题 Come and see me whenever ______.

单选题Telephones save the feet and endless amounts of time. This is due partly to the fact that the telephone service is superb here, ______ the postal service is less efficient.

单选题The badly wounded soldiers take ______ for medical treatment over those only slightly hurt. A. priority B. measures C. chance D. responsibility

单选题Science is an enterprise concerned with gaining information about causality, or the relationship between cause and effect. A simple example of a cause is the movement of a paddle as it strikes a ping-pong ball; the effect is the movement of the ball through the air. In psychology and other sciences, the word "cause" is often replaced by the term "independent variable". This term implies that the experimenter is often "free" to vary the independent variable as he or she desires (for example, the experimenter can control the speed of the paddle as it strikes the ball). The term "dependent variable" replaces the word "effect", and this term is used because the effect depends on some characteristic of the independent variable (the flight of the ball depends on the speed of the paddle). The conventions of science demand that both the independent and dependent variables be observable events, as is the case in the ping-pong example. In the case of biorhythm theory, the independent variable is the number of days that have elapsed between a person's date of birth and some test day. The dependent variable is the person's level of performance on some specified task on the test day. Notice that although the experimenter is not free to choose a birthday for a given individual, persons with different dates of birth can be tested on the same day, or a single subject can be tested on several different days. In order to predict the relationship between independent and dependent variables, many scientific theories make use of what are called intervening variables. Intervening variables are purely theoretical concepts that cannot be observed directly. To predict the flight of a ping-pong ball, Newtonian physics relies on a number of intervening variables, including force, mass, air resistance, and gravity. You can probably anticipate that the intervening variables of biorhythm theory are the three bodily cycles with their specified time periods. It should be emphasized that not all psychological theories include intervening variables, and some psychologists object to their use precisely because they are not directly observable. The final major component of a scientific theory is its syntax, or the rules and definitions that state how the independent and dependent variables are to be measured, and that specify the relationships among independent variables, intervening variables, and dependent variables. It is the syntax of biorhythm theory that describes how to use a person's birthday to calculate the current status of the three cycles. The syntax also relates the cycles to the dependent variable, performance, by stating that positive cycles should cause high levels of performance whereas low or critical cycles should cause low performance levels. To summarize, the components of a scientific theory can be divided into four major categories: independent variables, dependent variables, intervening variables, and syntax.

单选题The author's attitude towards superpills can best be described as one of______.

单选题It is not within the scope of this article to present test procedures in detail, but rather ______ a brief outline of each and the significance of the results.

单选题Her father flew into a ______ when he learned that she wanted to get married before she graduated from the university. [A] feeling [B] emotion [C] sensation [D] passion