听力原文：Why should the msn go to the university health center？
(22)
A. He can get free physical examinations there.
B. He can get an influenza vaccination there.
C. He'll get a prescription for medication there.
D. He'll find information on nutrition there.
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听力原文：Why was it a must to replace the old standard weight？
(25)
A. It was damaged.
B. It was made of low quality metal.
C. It was lost.
D. The standard of the country had changed.
【C18】
A. Rarely
B. Partially
C. Sometimes
D. Mostly
【B9】
A. minimum
B. much
C. little
D. nothing
听力原文：How was the standard weight used by the government？
(24)
A. To cheek the accuracy of scales.
B. To see the quality of other metals.
C. To measure changes in the air.
D. To measure the length of metal.
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