According to the passage, the Earth's magnetic field has______.
A. misguided many a man and animals
B. begun to change to its opposite direction
C. caused the changes of the polarities
D. been weakening its strength for a long time
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听力原文：M: The show starts at eight.
W: Good. We have fifty minutes to get there.
Q: What time is it now？
(4)
A. 8:50.
B. 7:40
C. 7:20
D. 7:10
【C12】
A. weary
B. obtain
C. wink
D. retard
His future plan may NOT include
A. expanding the market for jam.
B. developing other food products.
C. buying supermarkets in America
In court he repeated his______that he was not guilty in front of the jury.
A. impressions
B. alliteration
C. clauses
D. testimony
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