What is one of the challenges facing the American economy？
A. Decreasing productivity.
B. People's reluctance to spend.
Competition from overseas.
D. Slack trade activities.
【C10】
A. by
B. on
C. under
D. over
听力原文：W: The morning paper says the space shuttle is taking off at 10 a.m. tomorrow.
M: Yeah, as just another one of this year's routine missions. The first mission was undertaken a decade ago and broadcast live then worldwide.
Q: What can we infer from this conversation？
(17)
A. This year's shuttle mission is a big step in space exploration.
B. The shuttle flight will be broadcast live worldwide.
C. The man is excited at the news of the shuttle flight.
D. The man is well informed about the space shuttle missions.
What does the author say about the national data on UK universities' performance in commercialisation？
A. It does not rank UK universities in a scientific way.
B. It does not reflect the differences among universities.
C. It indicates their ineffective use of government resources.
D. It masks the fatal weaknesses of government policy.
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