题目内容：
A)To attend a conference．B)To work in a firm．
C)T，o do some sightseein9．
D)To visit an exhibition．
参考答案：
答案解析：
单选题：A)To attend a conference．B)To work in a firm． C)T，o do some
- 题目分类：英语三级A级
- 题目类型：单选题
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B)To work in a firm．
C)T，o do some sightseein9．
D)To visit an exhibition．