单项选择题
M：The front tire is flat，and the seat needs to be raised． W：Why not take“to Mr．Smith”
A. He fixes bicycles. B. He sells chairs. C. He raises sheep. D. He is a gardener.
A. all the activities about plagiarism B. the activities of self-plagiarism C. the argument for the impossibility of self-plagiarism D. the argument for the possibility of self-plagiarism
A. It’s cheap. B. It’s reasonable. C. It’s expensive. D. It’s ok.