题干
---What about ______ conference you attended last week?
---To tell the truth, it was too boring, you know, _____ conference like that.
---To tell the truth, it was too boring, you know, _____ conference like that.
A：a, the
B：the, /
C：the, a
D：the, the
答案(点此获取答案解析）
C
，那么
，则在
内过点B的所有直线中（ ）