题目内容：
Which of the following statementsis supported by the passage?
A．The college students have troubleseparating good plants fron t wild grass． B．Craftsman’s experience is usuallyunscientifiC．
C．The contemptuous(傲慢的)college students will receive nothing from craftsmen．
D．Traditional practices are as importantas experience for the college student．
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答案解析：