问题
选择题
Jack Ma(Ma Yun), CEO of ALIBABA.COM，first touched a computer in 1995, _______ he visited a friend living in Seattle.
A. where B. when C. on which D. that
答案
答案：B
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Jack Ma(Ma Yun), CEO of ALIBABA.COM，first touched a computer in 1995, _______ he visited a friend living in Seattle.
A. where B. when C. on which D. that
答案：B