23.The company just finished ______ automated defect-removal systems in the last of its nine U.S. potato plants.
A. installing
B. to install
C. to set
D. setting
满分:4分♦
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23.The company just finished ______ automated defect-removal systems in the last of its nine U.S. potato plants.
A. installing
B. to install
C. to set
D. setting
满分:4分♦
(责任编辑:admin) |