1、Freshwater fish stocks are vulnerable or endangered because of ______.
A. shortage of freshwater.
B. pollution and changes in their living environment.
C. fertilizer run-off.
D. closed chemical works.
试题答案:B
2、Which of the following is true about mental health and physical health?(单选题)
A. Mental health is better than physical health.
B. Neither is of great significance.
C. Both are equally important.
D. Physical health counts more than mental health.
试题答案:C
3、What is the passage mainly about?
A. Archaeological excavation.
B. A wealthy settlement near the Bisenzio river.
C. Artifacts unearthed at a site known as Gonfienti.
D. Gabriella Poggesi, the archaeologist.
试题答案:A
4、Which of the following is NOT a possible cause of the housing crash?(单选题)
A. A prolonged economic recession.
B. A rise in interest rates.
C. A fall in interest rates.
D. A decline in the demand of housing.
试题答案:C
5、What is the speaker’s main topic?(单选题)
A. The replacement of the harpsichord by the piano.
B. The development of electronic musical instruments.
C. The relative costs of different types of musical instruments.
D. The performance of classical music on synthesizers.
试题答案:B
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