单项选择题

Passage Two

A. They compete with each other.
B. They do good to each other.
C. They focus on different news.
D. They will die out.
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单项选择题
A. Read the operational manual. B. Try the buttons one by one.C. Make the machine run slowly. D. Ask her instructor for advice.
A. Read the operational manual.
B. Try the buttons one by one.
C. Make the machine run slowly.
D. Ask her instructor for advice.
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