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问题
单项选择题
肝豆状核变性是因为下列哪种物质代谢障碍所导致的()
A．铁
B．铜
C．锌
D．镁
E．铅
答案
参考答案：B
选择题
Many students have never been to China before and ______ any Chinese.
A. could hardly say
B. can hardly talk
C. can hard speak
D. can hardly speak
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填空题
《财经郎眼》是我国哪位经济学家主讲的财经类节目（）？
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