单项选择题

Question 30 is based on the following news.
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单项选择题
What led to the failure of NASA’s mission
A. Fuel shortage.
B. Loss of data.
C. Fairing separation failure.
D. Satellite malfunction.
单项选择题
According to the passage, today’s cola
A. tastes the same as the past.
B. is not refreshing.
C. can not cure headaches.
D. is much cheaper than before.
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