单项选择题

A．Several months ago.
B．Three years ago.
C．Five years ago.
D．Eight years ago.
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单项选择题
A．She advises the man to be careful.B．She agrees to give a hand to the man.C．She sees the job as a piece of cake.D．She asks the man to move the plant first.
A．She advises the man to be careful.
B．She agrees to give a hand to the man.
C．She sees the job as a piece of cake.
D．She asks the man to move the plant first.
问答题
My Idea of professional Ethics for a Scientist
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