单选题：Anxiety about financial matter lessened somewhat when, in 19

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Anxiety about financial matter lessened somewhat when, in 1910, the United States accepted responsibility for Liberia's survival. A．A　descended
B．B　faded
C．C　diminished
D．D　highlighted

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Young people who are well-educated like the art they can participate in.

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In America today, all science museums are open to the public and free.

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