单项选择题

A．for
B．in
C．with
D．on
<上一题 目录 下一题>
热门 试题

单项选择题
Why are American scientists developing these maps
A．To estimate the extreme weather.
B．To develop the satellite technology.
C．To improve agricultural output.
D．To learn how to change information to maps more efficiently.
单项选择题
Which is not mentioned in the passage as an aspect that farming activities are damaging
A．Soil.
B．Human population.
C．Forests.
D．Water Supplies.
相关试题