题目内容：
But competitive swimming is just over one hundred years old.
参考答案：
答案解析：
选择题：But competitive swimming is just over one hundred years old.
- 题目分类： 大学英语B级
- 题目类型：选择题
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在ICO时，上牙弓比下牙弓更靠近舌侧的胎关系是（）。A．开牙B．反牙C．中性牙D．对刃牙
在ICO时，上牙弓比下牙弓更靠近舌侧的胎关系是（）。A．开牙B．反牙C．中性牙D．对刃牙
Can you express yourself clearly in English?
Can you express yourself clearly in English?
Christmas is the most important festival in the west.
Christmas is the most important festival in the west.
Can I download this material for free?
Can I download this material for free?
Abundant natural resources in the island are to be exploited and used.
Abundant natural resources in the island are to be exploited and used.