单项选择题

In the matter of developing energy from ocean water, Britain is ______.

A．working on an old Japanese method
B．the most advanced country in the field
C．following the lead of the United states
D．consolidating their work with operations
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单项选择题
The use of water referred in this passage is ______.
A．a new concept compared with other ways of natural resources
B．less expensive than petroleum and other means of energies
C．now being used more from the ocean than from rivers and lakes
D．being developed to supplement other sources of energy
单项选择题
Getting energy from the ocean is important to ______.
A．Russia because of its limited coal and petroleum resources on land
B．America because it is the greatest consumer of energy in the world
C．Asia because most of Asian countries lack other sources of energy
D．South America because a great part of the population is very poor
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