A.It is increasing among developed countries.
B.It is decreasing worldwide.
C.Less is demanded from developing countries.
D.Most of it is spent very efficiently.
38.What is the picture of Asias food supplies in the first 25 years?
A.Food shortage will not be a problem.
B.There will be more hungry people in southern Asia.
C.Population growth will result in more hungry people.
D.There will be fewer hungry people in East Asia.
39.What does Dr.Fischer say about technologies?
A.They are costly.
B.They have to be improved to meet local needs.
C.Their application is limited.
D.They have to be applied locally.
40.It can be infered from the last paragraph that_____.
A.there is a demand for saving land for non-agricultural activities.
B.crop production is growing faster in developing countries.
C.maize production reached its peak in the 1990s.
D.technologies improving maize production have been well developed.
Dangers await babies with altitude
Women who live in the worlds highest communities tend to give birth to under-weight babies,a new study suggests.These babies may grow into adults with a high risk of heart disease and strokes.
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