The scientist does not study nature ________ it is useful to do so. He studies it because he takes p...
2022-10-19 17:51:12 92次 2014-2015学年江苏南京盐城两市联考高三上学期第一次模拟考英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
The scientist does not study nature ________ it is useful to do so. He studies it because he takes pleasure in it.
A. until B. though C. because D. Unless
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