更多"Alaska's Tongass and Chugach Nation"的相关试题:
[单项选择]What' s the author' s impression of Alaska
A. Positive.
B. Negative.
C. Neutral.
D. Funny.
[单项选择]National forests make money for the government through the sale of trees for lumber.
A. earn
B. print
C. trade
D. borrow
[单项选择]Newly- found fossilized tracks in Alaska proved that dinosaurs' migration between Asia and North America took place ________.
A. much earlier than experts previously thought.
B. much later than experts previously thought.
C. after Asia became an independent continent.
D. sometime around 25 million years ago.
[单项选择]Newly-found fossilized tracks in Alaska proved that dinosaurs' migration between Asia and North America took place ______.
A. much earlier than experts previously thought
B. much later than experts previously thought
C. after Asia became an independent continent
D. sometime around 25 million years ago
[单项选择]
The Alaska pipeline starts at the frozen edge of the Arctic Ocean. It stretches southward across the largest and northern most state in the United States, ending at a remote ice-free seaport village nearly 800 miles from where it begins. It is massive in size and extremely operate.
The steel pipe cresses windswept plains and endless miles of delicate tundra that tops the frozen ground. It weaves through crooked canyons, climbs sheer mountains, plunges over rocky crags, makes its way through thick forests, and passes over or under hundreds of rivers and streams. The pipe is 4 feet in diameter, and up to 2 million barrels of crude oil can be pumped through it daily.
Resting on H-shaped steel racks called "bents," long sections of the pipeline follow a zigzag course high above the frozen earth. Other long sections drop out of sight beneath spongy or rocky ground and return to the surface later on. The pattern of the pipeline’s up-and-down route is det
A. operating costs
B. employees
C. consumers
D. construction
[单项选择]Monoculture forests planted in rows turned out to be extremely ______ to disease and to suffer from a gradual depletion of nutrients.
A. likely
B. prone
C. apt
D. liable
[单项选择]Sooner or later the forests will disappear unless ______.
A. every country has a plentiful supply of trees
B. every government has a good education system
C. all the people realize how important it is to keep a plentiful supply of trees
D. every government realizes the importance of trees services
[单项选择]The officials of Alaska native corporations gathered to ______.
A. discuss the reform proposals
B. find ways to help native Alaska people
C. improve corporate competition
D. protest against the Pentagon
[单项选择]Turning cultivated land back into forests or pasture is a fundamental way to stem soil ______ and desertification in the long run.
A. erosion
B. depletion
C. violation
D. delusion
[单项选择]We can find more and more grey wolf in Alaska.
