The passage is primarily concerned with ______.
A、informing readers of different sea creatures
B、describing predatory microscopic organisms
C、solving some long-lasting mysteries about the sea
D、discussing the environment for various fishes
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According to the passage, what was the strategy used to eliminate the spread of smallpox?
A、Vaccinations of entire villages.
B、Treatment of individual victims.
C、Isolation of victims and mass vaccinations.
D、Extensive reporting of outbreaks.
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Which of the following is NOT a Danish characteristic cited in the passage?
A、Mysterious thinking.
B、Equality in society.
C、Linguistic tolerance.
D、Fondness of foreign culture.
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How did the narrator and his aunt travel to see his father?
A、By car.
B、By bus.
C、By ship.
D、By train.
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In the expression “a single bar of it” in the last paragraph, “it” refers to.
A、the tune of the last concerto
B、one of Mozart’s musical works
C、part of the knowledge we have
D、a measurement on the stave
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From the beginning of this passage we know that.
A、most of the American states were prohibited to take a rest
B、the United States of America prohibited others from rest
C、the United States of America prohibited alcohol sales
D、most states in the country began to allow alcohol sales