单项选择题

What is the main idea of the news
How to control pigeon populations on the Saint Mark’s Square

A．Some people suggest catching the birds and exporting them to crisis areas to supply protein to people.
B．Some people suggest squab producers can give a help to solve the problem.
C．The above two are right.
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单项选择题
What do Amizade volunteers do
A．Volunteers generally provide labor and do things like teach and assist at health centers.
B．They can also do research.
C．They worked on systems to harvest rainwater from the roofs of homes.
D．All of the above are right.
单项选择题
In what areas will Google spend the money
A．In private business development.
B．In poverty reduction.
C．In earning more money.
D．The first two answers are right.
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