单项选择题

A. Walking.
B. Car-pooling.
C. Taking public transit.
D. Driving cars only on the weekend.
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单项选择题
A. They are talking about the subway project. B. They are talking about the changes of their city. C. They are talking about the plan of a new bus line. D. They are talking about how to improve the transport system of their city.
A. They are talking about the subway project.
B. They are talking about the changes of their city.
C. They are talking about the plan of a new bus line.
D. They are talking about how to improve the transport system of their city.
单项选择题
Why is the great export of palm oil both a blessing and a curse
A. Because every coin has two sides, without the exception of export of palm oil.
B. Because it is both a stimulation of economy increase and climate warming.
C. Because it both makes contribution to climate improvement and economy decline.
D. Because it is both the driver of large income and huge destruction of forests.
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