关于everydaytoextendlife的百科

• Newmedicinesandinstruments   everydaytoextendlife.A．dev...

• 问题详情：Newmedicinesandinstruments   everydaytoextendlife.A．develop                             B．arebeingdevelopedC．aredeveloping                      D．havedeveloped【回答】B【解析】句意：为了延长生命...
• 2019-09-1218621