单项选择题


Questions 6 and 8 are based on the following news. At the end of the news item, you will be given 10 seconds to answer each question.
Now listen to the news.

What does the cancellation of the 16-day flight mean

A.The scientists on the ground are pursuing only their most important experiments.
B.The shuttle team will be disappointed at the curtailment of the science mission.
C.The science will complete the experiments on a later shuttle flight.
D.The remaining generators are sufficient.
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