问题
选择题
Last year our factory produced 50,000 TV sets, most of ____ were shipped to European countries.[ ]
A. whom
B. which
C. what
D. that
答案
答案：B
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Last year our factory produced 50,000 TV sets, most of ____ were shipped to European countries.[ ]
A. whom
B. which
C. what
D. that
答案：B