问题描述: 填介词 He built a telescope ________ which he could study the skies. 1个回答 分类:英语 2014-09-29 问题解答: 我来补答 though 恩,肯定是的 telescope 意为便捷式伸缩带,就是说他买了这个用于学习滑雪, 展开全文阅读