单项选择题

The development of oceanic water power is important to America because ______.

A．there is a severe shortage of coal and petroleum
B．it is the cheapest method of producing energy
C．petroleum supplies are being steadily drained
D．obtaining energy from ocean water are simpler
<上一题 目录 下一题>
热门 试题

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
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
相关试题