什么叫电分析化学？尽管存在不同意见，一些著名学者还是提出了大多数人可接受的定义。50年代，I.M. Kolthoff 提出：Electroanalytical Chemistry is the application of electrochemistry to analytical chemistry
Flow control: end-to-end mechanism for regulating traffic between source and destination Congestion control: Mechanism used by the network to limit congestion The two are not really separable, and I will refer to both as flow control In either case, both amount to mechanisms for limiting the amount of traffic entering the network Sometimes the load is more than the network can handle Eytan Modiano
Part I Reading Comprehension (40%) Task 1 Directions: Choose the best answer from the 4 choices Air pollution can spread from city to city. It even spreads from one country to another. Some northern European countries have had\black snow\ from pollutants that have traveled through the air from other countries and have fallen
Part I(25%) Directions: This part is to test your ability to construct grammatically correct sentences. It consists of 2 sections Section A Direction: In this section, there are15 incomplete. You are required to complete each one by deciding on the most appropriate words from the four choices
Part I Reading(40%) Every human being, no matter what he is doing, gives off body heat. The usual problem is how to dispose of it. but the designers of the Johnstown Campus of the University o Pittsburgh set themselves the opposite problem how to collect body heat. They have designed a collection system which utilizes not only body heat, but the heat given off by such
Part I Reading(40%) Passage 1 Malcolm Greenway is thirty-five years old, married with two children. He lives in a town about twenty kilometers away from the school in which he teaches, and goes to work every morning by car. The village school was built about forty years ago by the local education authority for only about sixty. a new room has recently been added to be used as a dining room, and the playground has been enlarged and improved. A woman teacher is in charge of the youngest children
