题目内容
Rock-climbing is a breathtaking activity, very popular nationwide among young people, ______ cooperation as well as courage plays an important role.
| A．who | B．which | C．where | D．of which |
C
解析试题分析：考查定语从句。句意：攀岩是一种惊险的活动, 全国范围内在年轻人中很受欢迎,在这个活动中合作以及勇气起着重要的作用。本题的先行词是rock-climbing,短语从句cooperation as well as courage plays an important role的结构非常完整，所以使用关系副词where="in" which。选C。
考点：考查定语从句
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