题目内容
The Security Council is the most powerful body in the UN. It is responsible for maintaining international peace, and for restoring peace when conflicts arise. Its decisions are binding on all UN members. The Security Council has the power to define what a threat to security is, to determine how the UN should respond, and to enforce its decisions by ordering UN members to take certain actions.
The Council convenes any time there is a threat to peace. A representative from each member country who sits on the Council must be available at all times so that the Council can meet at a moment's notice. The Security Council also frequently meets at the request of a UN member—often a nation with a grievance about another nation's actions.
The Security Council has 15 members; five of which hold permanent seats. The Assembly elects the other ten members for two-year terms. The five permanent members—the United States, Britain, France, Russia (formerly the Soviet Union), and China—have the most power. These nations were the winning powers at the end of World War Ⅱ, and they still represent the bulk of the world's military might.
Decisions of the Council require nine votes. But any one of the permanent members can veto an important decision. This authority is known as the veto right of the great powers. As a result, the Council is effective only when its permanent members can reach a consensus.
The Council has a variety of ways it can try to resolve conflicts among countries. Usually the Councils' first step is to encourage the countries to settle their disagreements without violence. The Council can mediate a dispute or recommend guidelines for a settlement. It can send peacekeeping troops into a distressed area. If war breaks out, the Council can call for a ceasefire. It can enforce its decisions by imposing economic sanctions on a country, or through joint military action.
Which is TRUE in the following statements according to the passage？
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听力原文： Two bombs exploded in Algeria Tuesday as a European Union team met with government leaders to discuss the wave of civilian massacres. One bomb went off at a bus center in the center of the capital of Algeria, killing one person, and an hour later, another bomb blew up in the coastal town of Algeria, killing 3 others. The Algerians agreed to allow European Union deputy foreign ministers to discuss the situation but again, turned down any UN investigation.
(30)
A．A bomb explosion.B．A traffic accident.C．Murder.D．Massacres.
One motion is adopted by the Security Council only if ______.
听力原文： One way that scientists learn about man is by animals, such as mice, rats and monkeys. The scientists in this laboratory are experimenting on mice. They are studying the relationship between diet and health. At this time over one hundred experiments are going on in this laboratory.
In this experiment, the scientists are studying the relationship between the amount of food the mice eat and their health. The mice are in three groups. All three groups are receiving the same healthy diet. But the amount of food that each group is receiving is different. The first group is eating one cup of food each day, the second is eating two cups, and the third group of mice is eating three cups.
After three years, the healthiest group is the one that is only eating one cup of food each day. The mice in this group are thinner than normal mice. But they are more active. Al so they are living longer. Mice usually live for two years. Most of the mice in this group are still alive after three years. The second group of mice is normal weight. They are healthy, too. They axe active, but not as active as the thinner mice. But they are only living about two. years. The last group of mice spends most of the day eating or sleeping. They are not very active. These mice are living longer than the scientists thought: about a year and a half. But they are not healthy. The experiment is still going on. The scientists hope to finish their studies in two years. 32．According to the passage，what animals are often used by scientists to learn about man？
(33)
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