[单项选择]

Surprisingly, there is a relationship between sea salt and the making of rain drops. Most of the water droplets that make up clouds are formed around small, solid particles. In order to fall as rain, the cloud droplets have to increase in size. Clouds from which rain does not fall have droplets that are fairly uniform in size. Clouds that produce rain have some droplets that are much larger than others.
The production of rain depends on the presence of the large droplets that grow in size by coalescence (a fusing together). There is evidence to support the theory that a particle of sea salt serves as the nucleus (核，核心) or center, around which the larger droplets form. Most of the sea salt probably enters the atmosphere from, bubbles that form on the surface of the sea. When the bubbles break, a tiny, even microscopic, droplet of salt water is cast into the air. Once in the atmosphere, the microscopic piece of salt collects water vapor from the air. The water vapor then co
A. dust particles
B. droplets that are uniform in size
C. droplets that are large and small
D. bubbles

[单项选择]

Surprisingly, there is a relationship between sea salt and the making of rain drops. Most of the water droplets that make up clouds are formed around small, solid particles. In order to fall as rain, the cloud droplets have to increase in size. Clouds from which rain does not fall have droplets that are fairly uniform in size. Clouds that produce rain have some droplets that are much larger than others.
The production of rain depends on the presence of the large droplets that grow in size by coalescence (a fusing together). There is evidence to support the theory that a particle of sea salt serves as the nucleus (核，核心) or center, around which the larger droplets form. Most of the sea salt probably enters the atmosphere from, bubbles that form on the surface of the sea. When the bubbles break, a tiny, even microscopic, droplet of salt water is cast into the air. Once in the atmosphere, the microscopic piece of salt collects water vapor from the air. The water vapor then co
A. dust particles
B. droplets that are uniform in size
C. droplets that are large and small
D. bubbles

[单项选择]What is the relationship between them

[单项选择]The relationship between mortgage approvals and real house prices is that ______.


A. the former can be forecasted by the latter
B. the former has a faster slowdown than the latter
C. the former is more sustained than the latter
D. the former may lead to the changes of the latter

[简答题]Discuss the relationship between linguistics and language teaching.

[单项选择]Beliefs about the relationship between humanity and the natural environment can be directly correlated with conceptions held regarding the role science and technology play in mediating that relationship. The interdependence of these beliefs with perceptions of the environmental impacts of science and technology are central in the notions held with regard to the future role of science and technology.（　）
A. regarding
B. play in mediating
C. are central in
D. with regard to

[单项选择]

Attempts to understand the relationship between social behavior and health have their origin in history. Dubos (1969) suggested that primitive humans were closer to the animals (1) they, too, relied’upon their instincts to stay healthy. Yet some primitive humans (2) a cause and effect relationship between doing certain things and alleviating (3) of a disease or (4) the condition of a wound. (5) there was so much that primitive humans did not (6) the functioning of the body, magic became an integral component ofthe beliefs about the causes and cures of heath (7) Therefore it is not (8) that early humans thought that illness was caused (9) evil spirit. Primitive medicines made from vegetables or animals were invariably used in combination with some form of ritual to (10) harmful spirit from a diseased body.
One of the. earliest (11) in the Western world to formulate principles of health care
A. identified
B. recognized
C. admitted
D. esteemed