一、填空题(每空1分,共30分) 1、GPS由()、()和()等三部分构成。 2、开普勒六参数有√as、()、()、()、()和()。 3、电磁波的频率越(),电离层折射的影响大;

TWo fundamentally different types of cells exist. Procaryotic cells have a much simpler morphology than eucaryotic cells and lack a true membrane-delimited nucleus. All bacteria are procaryotic. In contrast, eucaryotic have a membrane enclosed nucleus; they are more complex morphologically and are usually larger than prokaryotes. Algae, fungi, protozoa higher plants, and animals are eucaryotic Procaryotic and eucaryotic cells differ in many other ways as well

History and development of Endocrinology(1) Roughly a hundred years ago, Starling coined the term hormone to describe secretin, a substance secreted by the small intestine into the blood stream to stimulate pancreatic secretion. In his Croonian Lectures, Starling considered the endo- crine and nervous systems as two distinct mechanisms for coordination and control of organ function. Thus, endocrinology found its first home in the discipline of mammalian physiology

Lecture 3 Differential geometry of surfaces 3.1 Definition of surfaces Implicit surfaces F(r,,a)=0 Example: 22+6+2=1 Ellipsoid, see Figure 3.1 Figure 3.1: Ellipsoid · Explicit surfaces If the implicit equation F(, y, a)=0 can be solved for one of the variables as a function

Spring 2003 Example Given: Catapult rotating at a constant rate(frictionless, in the horizontal plane) Find the eom of the particle as it leaves the tube

Stress: A Stimulus or Response Stimulus Response Treats stress as some The consequence of the characteristic or interaction between and event that may result

Part L Reading comprehension (40% Directions: There are some tasks for you to fulfill. You should read the materials carefully and do the tasks as you are instructed Task 1 (10%) Directions: After reading the following passage, you will find 5 questions or unfinished statements. For each question or statement there are 4 choices marked a)

I. Reading Comprehension 40 Directions: This part is to test your reading ability. There are tasks for you to fulfill. You should read the reading materials carefully and do the tasks as you are instructed. 10 Tas rections: fier reading the following passage, you will find 5 questions or unfinished statements, numbered I through5. For each

Most people learn more effectively when they study in small groups and cooperate in various other ways on homework. This can be particularly true in programming assignments, where working with a partner often helps to avoid careless errors. We are very much in favor of this kind of cooperation, so long as all participants actively involve themselves

Slide 17.1.1 Normal Order(Lazy) Evaluation Over the past few lectures, we have been looking at evaluation especially how to implement eval and apply in a anguage such as Scheme, in order to define a language. What we have seen is that by creating, or specifying, eval and its associated procedures, we actually define the semantics of the