题目选项分析

In early Mesopotamian civilization, castor oil servednot only as a laxative but also as a skin-softening lotion and as a construction lubricant for sliding giant stone blocks over wooden rollers.

In early Mesopotamian civilization, castor oil servedas not only a laxative but as a skin-softening lotion and in construction, as a lubricant for sliding giant stone blocks over wooden rollers.