全美经济教育协会发现，17个州现在要求中学生上经济课，而在1998年只有13个州这样做。
The National Council on economic Education has found that seventeen states now require high school students to take a class in economics. This number has grown from thirteen in 1998.
全美经济教育协会发现，17个州现在要求中学生上经济课，而在1998年只有13个州这样做。
The National Council on economic Education has found that seventeen states now require high school students to take a class in economics. This number has grown from thirteen in 1998.
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