[填空题]

Mt. Desert Island

The coast of the State of Maine is one of the most irregular in the world. A straight line running from the southernmost coastal city to the northernmost coastal city would measure about 225 miles. If you followed the coastline between these points, you would travel more than ten times as far. This irregularity is the result of what is called a drowned coastline. ______(46) At that time, the whole area that is now Maine was part of a mountain range that towered above the se

• a. As the glacier(冰川) descended, however, it expended enormous force on those mountains, and they sank into the sea.
  As tbe mountains sank, ocean water charged over the lowest parts of the remaining land, forming a series of twisting inlets and lagoons(咸水湖). The highest parts of the former mountain range, nearest the shore, remained as islands. ______(47) Marine fossils found here were 225 feet above sea level, indicating the level of the
  

[填空题]
The coast of the State of Maine is one of the most irregular in the world. A straight line running from the southernmost coastal city to the northern most coastal city would measure about 225 miles. If you followed the coastline between these points, you would travel more than ten times as far. This irregularity is the result of what is called a drowned coastline (46) At that time,the whole area that is now Maine was part of a mountain range that towered above the se

• a. As the glacier (冰川)descen- ded, however, it expended enormous force on those mountains, and they sank into the sea.
  As the mountains sank, ocean, water charged over the lowest parts of the remaining land, former a series of twisting inlets and lagoons(咸水湖). The highest parts of the former mountain in range, rearest the shore,remained as islands (47) Marine fossils found here were 225 feet above sea level, indicating the level
  

[单项选择] The rocky, tiny islands off the coast of Maine attract a particular kind of people. The population of these islands triples or quadruples in the summer, but in the winter, only the very independent, self-reliant types remain. Matinicus is an island one mile wide and two and a half miles long. There are only forty-five winter residents. After the tourists have gone, many of the year-round residents gather for conversation at the island’’s post office and store— located at the only traffic light on the island, at the intersection of two gravel roads. People on Matinicus don’’t stay home to watch television— though reception on the island is excellent. There are no central electric utility lines, so each home uses a diesel (柴油) generator as a power supply. Diesel fuel is expensive, so the residents are very careful about their use of electricity. Most of the winter people are fishermen, lobstermen, storeowners and their families. They still enjoy a way of life largely the sa
A. Not known
B. 225
C. 180
D. 30