单项选择题

A. Because cost for communications satellites decreases.
B. Because demand for communications satellites grows.
C. Because technology for communications satellites develops.
D. Because management for communications satellites advances.
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单项选择题
A. The problems caused by global warming. B. The findings of a scientist named Nerilie Abram.C. The survey made by findings of The Intergovernmental Panel on Climate Change.D. The cooling of Antarctica and global warming.
A. The problems caused by global warming.
B. The findings of a scientist named Nerilie Abram.
C. The survey made by findings of The Intergovernmental Panel on Climate Change.
D. The cooling of Antarctica and global warming.
单项选择题
A. She should take a taxi to the downtown. B. She should take the train to the downtown.C. She should take the bus to the downtown. D. None of the transportation can get her there on time.
A. She should take a taxi to the downtown.
B. She should take the train to the downtown.
C. She should take the bus to the downtown.
D. None of the transportation can get her there on time.
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