A、
About two-thirds of the world' s population.
B、
About two-fifths of the world's population.
C、
About 80 million.
D、
About 8 million.
【正确答案】
A
【答案解析】
A、
Fish and oil.
B、
Warm temperature and ocean currents.
C、
Minerals and oil.
D、
The food, energy sources, and minerals.
【正确答案】
D
【答案解析】
A、
The sea resources have largely been used up.
B、
The sea, in the broad sense, has not yet been developed.
C、
The problems that prevent us from using the food, minerals, and energy sources of the sea have already been solved.
D、
The technology will be good enough to exploit all the sea resources soon.
【正确答案】
B
【答案解析】
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