问题
单项选择题
Which of the following is not mentioned as the products of 3M Co. in this news report().
A.Optical film.
B.Post-it notes.
C.Scotch tape.
D.Desktops.
答案
参考答案：D
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Which of the following is not mentioned as the products of 3M Co. in this news report().
A.Optical film.
B.Post-it notes.
C.Scotch tape.
D.Desktops.
参考答案：D