题目内容：
A few thousand years ago, people lived about 30 years. Now many people live over 75 years. Obviously, we have already ________ our lives to an amazing degree.得分/总分
A.
attained
B.
stretched
C.
extended
2.00/2.00
D.
enriched
参考答案：
选择题：A few thousand years ago, people lived about 30 ye
- 题目分类：兰州交通大学-土木工程-大学英语3
- 题目类型：选择题
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得分/总分
A.
attained
B.
stretched
C.
extended
2.00/2.00
D.
enriched