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Questions 9 to 12 are based on the passage you have just heard.
9
A.Seismologists haven't developed any ways to predict earthquake.
B.Scientists can foretell the specific time and location of an earthquake.
C.The earthquake prediction helps people prevent it happening.
D.The earthquake prediction can only locate potential areas of danger.
10
A.Seismic activity.
B.An opening in the Earth's crust.
C.Crack in the Earth's core.
D.A lot of noise before an earthquake.
11
A.They termed the second prediction model.
B.They observed ground tilt before earthquakes.
C.They learned lessons from major earthquakes.
D.They evacuated people from the city in time.
12
A.He believes the third model will be combined with the first one.
B.He couldn't agree with the second model any more.
C.He has some reservations about all the three models.
D.He obviously doesn't favor any of the three models at all.
