单项选择题

A．Uses of cold sea water.
B．Irrigating desert areas.
C．Techniques for preserving the environment.
D．Techniques of cultivating plants.
<上一题 目录 下一题>
热门 试题

单项选择题
A．Exploration.B．Increase oil production.C．Alternative sources of energy.D．Not of above all.
A．Exploration.
B．Increase oil production.
C．Alternative sources of energy.
D．Not of above all.
单项选择题
A．To other European countries.B．To the remote areas and suburbs.C．To the natural parks for birds.D．Back to their nests.
A．To other European countries.
B．To the remote areas and suburbs.
C．To the natural parks for birds.
D．Back to their nests.
相关试题