【单选题】The directors of the museum have realized______.
A．visitors prefer to learn from museums
B．people learn best when they look at something
C．people can learn better if they take a part
D．the importance of scientific roles
【单选题】The directors of the museum have realized______.
A．visitors prefer to learn from museums
B．people learn best when they look at something
C．people can learn better if they take a part
D．the importance of scientific roles
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