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【多选题】
The professor mentions two great figures in the field of biology. What are their common attributes in the professors viewpoint? [Clink on 2 answers. ]A.
They always used the same well-known and trusted techniques.
B.
They received wide public attention after their major contributions to biology.
C.
They were both unknown during early stages of their careers and later gained widespread recognition.
D.
Their theories and contributions stimulated the field of biology to a great extent.
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A.
补充维生素 D
B.
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C.
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D.
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E.
外科矫形术