单选题According to the passage, a flashbulb can be made to burn longer by using

单选题How did yellow ware achieve its distinctive color?

单选题The word "it" in line 12 refers to

单选题The passage explains the origin of which of the following terms?

单选题The United States Congress The United States Congress is the political institution that holds all legislative power in the United States of America. Its legislative power derives from the Constitutional Act of America, and as such it may not abuse the trust it has been vested with. According to the Constitution of the United States, the U.S. Congress" main responsibility is to balance the country"s budget and fiscal issues. Thus, Congress has the right to levy taxes, to borrow funds, to coin money, as well as issue patents and copyrights. Furthermore, Congress is responsible for regulating commercial enterprises and establishing trade relationships amongst states or with other nations. From an international point of view, it may also declare war, organize the U.S. military forces and federal courts. It may not, however, infringe onto the judicial chamber of the federal government by calling suspects in front of the court of law or passing a judicial sentence. Congress is only allowed to investigate the executive branch of power by delegating committees to supervise the activities of those who hold office. Finally, the U.S. Congress also has the power to break a deadlock during electoral colleges by appointing the President from among those candidates who had previously obtained the highest number of votes. The United States Congress has a bicameral constitution. Its two main chambers are comprised of the House of Representatives and the Senate. Legislative power is distributed equally amongst the two houses even though each chamber controls different aspects of legislature. Thus, the House of Representatives is able to initiate impeachment procedures and issue bills for raising taxes and revenues. On the other hand, the Senate"s role is more advisory in nature as it gives its consent to presidential nominations and ratifies various treaties. Traditionally, both the House of Representatives and the Senate meet in the U.S. Capitol in Washington to hold Congress. Since the issues they are concerned with are different in nature, they meet in separate chambers to discuss and ratify bills. Nonetheless, it is not uncommon for both chambers to meet in joint sessions or pass joint resolutions, particularly around election time. Elections are held in every even-numbered year, on the first Tuesday after the first Monday in November. This day is called "Election Day" in the United States, and all citizens are called upon to the polls to cast their vote for their Congressional representatives. As a rule, voters may choose to vote for such candidates as they have been put forth by their political parties during primary elections. Whereas the main political parties are comprised of the Republicans and the Democrats, ballots are not restricted to them alone. Independent and third party candidates also run for legislature, although their numbers and chances of success vary from state to state. Congressional members might be nominated for election by their respective parties, but their appointment is determined by a simple majority of votes. There is one notable exception to this procedure, however. In case a Senate position becomes vacant and special elections are called to fill the vacancy, the Governor of the Senate may temporarily appoint someone in that position. Following general elections, the distribution of seats in Congress runs as follows. 435 seats are available for elected members from 50 U.S. states in the House of Representatives. Each state is apportioned a specific percentage of seats in the House of Representatives based on the size of the state and its population. Each of the states is guaranteed a seat in Congress and sends its representatives from its single-member constituencies known as congressional districts. Once in office, the House of Representatives elects its own Speaker from the head of the majority party to preside over proceedings. In contrast, the Senate is made up of 100 members, each two representing a different state regardless of size or number. As well, senators are not voted by districts but by states as a whole. They serve six-year terms rather than the traditional two occupied by their counterparts in the House of Representatives. A further notable difference between the two chambers is that the President of the Senate is not elected by his peers. The position is transferred automatically to the Vice-President of the United States, or in his absence to the most senior senator of the majority party. Glossary Constitution: the system of laws which formally states people"s rights and duties bicameral: having two branches of houses as a legislative body the House of Representatives: the less powerful of the two parts of Congress in the U.S. the Senate: the smaller and more important of the two parts of the parliament

单选题Listening2"ArtHistoryClass"

单选题Legal experts have presented that the DNA samples and fingerprints match.

单选题The author mentions Roy Lichtenstein and Alan Sonfist in line 14 in order to

单选题The word "revitalize" in line 22 is closest in meaning to

单选题1 There is growing evidence that urbanization has a sharp impact on climate, causing changes that can wreak havoc on precipitation patterns that supply the precious resource of water. The heavy amounts of heat and pollution rising from cities both delay and stimulate the fall of precipitation, depriving some areas of rain while drenching others. 2 Cities are on average one to ten degrees warmer than surrounding undeveloped areas. Cities also produce large amounts of pollutants called aerosols, gaseous suspensions of dust particles or byproducts from the burning of fossil fuels. Both heat and aerosols change the dynamics of clouds. When hoisted up in the sky, the microscopic particles act as multiple surfaces on which the moisture in clouds can condense as tiny droplets. This can prevent or delay the formation of larger raindrops that fall more easily from the sky, or it can cause the rain to fall in another location. 3 In California, pollution blows eastward and causes a precipitation shortage of around one trillion gallons a year across the Sierra Nevada mountain range. By contrast, in very humid cities, such as Houston, heat and pollutants seem to invigorate summer storm activity by allowing clouds to build higher and fuller before releasing torrential rains.

单选题Political parties are necessary in the exercise of democracy in nation states. The enlargement of the electorate--the body of qualified voters--has increased the importance of parties to the point where it is practically impossible for a candidate to get elected without the support of a party organization. This is because the variety of issues facing nation states has complicated the problem of creating an informed electorate that can use its vote responsibly. The job of influencing popular opinion through newspapers, television, the Internet, and other mass media is too complicated and costly for an individual candidate to undertake. Although individual candidates continue to appear at public meetings--to answer questions and shake hands with voters-- the influencing of public opinion on a mass scale has become a specialized technique. Building political support on a nation-wide scale carries a high cost, and it requires nationally organized and well-financed parties. Party organizations thus have come to occupy a prominent place in the functioning of democracies.

单选题Listen to Track 24. A. To explain why some memes do not change much B. To ask the students for their opinion about songs as memes C. To acknowledge a problem with the meme theory D. To ask the students to test an idea about memes

单选题In addition to being the state capital, Albany is a focal point of trade, ship, and commerce in upstate New York.

单选题For several years now, we have seen a marked in attendance and exhibitions at the PCB design conferences.

单选题According to the passage, what is believed to cause the thin lines seen on Europa's surface?

单选题Listening6"OrientationSession"

单选题[此试题无题干]

单选题All of the following statements about the tails of comets are true EXCEPT:

单选题The progressive Movement is an umbrella tern (refer) to (a number of) reform (efforts) that (emerged) in the early 1900's

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