只对水中污染物的存在位置变化产生作用，而不对其 性质变化产生作用。其主要过程（作用）包括：移流（推 流、对流）、扩散（包括紊动扩散和离散等）、沉降或再 悬浮，以上过程（及作用）常称稀释混合

1、《固体废物污染环境防治法》的污染防治对象包括（ ） A、 危险废物 B、 液态废物 C、 工业固体废物 D、 城市生活垃圾 E、 置于容器内的气态废物

Economist.comOPINION Economics focus Stop worrying and love the deficit Nov 27th 2003 From The Economist print edition America's current-account deficit poses few dangers, says Alan Greenspan. Except to Europeans IN THE past year the United States has run up a current-account deficit of more than $500 billion. Some think that the line of credit extended by the res

Nagging doubts about the benefits of globalisation, and a look at the evidence WHEN David Ricardo, a 19th-century economist, criticised England's protectionist corn laws, he based his argument on the notion of \comparative costs\,these days called comparative advantage The idea, in brief, is that all countries can raise their living standards through specialisation and trade. Even if one country

From The Economist print edition Why the dollar still rules the world-and why the world should be grateful THE dollar is looking vulnerable. It is propped up not by the strength of America's exports, but by vast imports of capital. America, a country already rich in capital, has to borrow from abroad almost

The economic emergence of a fixed exchange rate periphery in Asia has reestablished the United States as the center country in the Bretton Woods international monetary system. We argue that the normal evolution of the international monetary system involves the emergence of a periphery for which the development strategy is export-led growth supported by undervalued exchange rates

Chapter 15: Temperature and the Ideal Gas Law了解) 1.平衡态(thermal equilibrium) 2. The Zeroth Law of Thermodynamics If two systems are in thermal equilibriu with a third system, then they are in thermal equilibrium with each other. 3.系统平衡态的宏观状态参量 Equation of state, equilibrium states 4. Absolute Temperature (Kelvin scale) T=273.15+t

The second column calculates Big Mac PPPs by dividing the local currency price by the American price. For instance, in Japan Big Mac costs￥22. Dividing this by the American price of$2.90 produces a dollar PPP against the yen of Y90, compared with its current rate of Y113, suggesting

Fred bergsten explains why policymakers need to act now in order to avert the danger of serious damage to the world economy FIVE major risks threaten the world economy. Three centre on the United States: renewed sharp increases in the current-account deficit leading to a crash of the dollar; a budget profile that is out of control; and an outbreak of trade protectionism a fourth relates to China which faces a possible hard landing from its recent overheating The fifth is that oil prices could rise to $60-70 per barrel even without a major political or terrorist disruption, and much higher with one

Chapter 2&3: Kinematics 2-1—2-7:一维运动,了解概念。(p16-34) 2-8: Use of Calculus, Variable Acceleration 会用积分求速度和加速度。(p34-35) 3-1,3-2,3-3,3-4and3-5(p44-51);7-2(p151- 152);11-1(p275-277) Vectors:知道如何计算 3-6: Vector Kinematics (p52-53) 3-7&3-8 projectile Motion:了解,(p54-p61)