单项选择题


Passage Two
Questions 29 to 31 are based on the passage you have just heard.

A．Materials science.
B．Biotechnology.
C．Biomedicine.
D．Fluid physics.
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单项选择题
A．For free.B．$50.00 a piece.C．$100.00 a piece.D．He did not tell the girl.
A．For free.
B．$50.00 a piece.
C．$100.00 a piece.
D．He did not tell the girl.
单项选择题
A．Immediate action.B．Accurate diagnosis.C．Medical knowledge.D．Expert experience.
A．Immediate action.
B．Accurate diagnosis.
C．Medical knowledge.
D．Expert experience.
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