2. 外语
  3. Tanning by the sun takes place because sunlight stimulates the skin to produce the pigment melanin.

Tanning by the sun takes place because sunlight stimulates the skin to produce the pigment melanin.

admin2010-01-13  48
问题 Tanning by the sun takes place because sunlight stimulates the skin to produce the pigment melanin.
选项 A、burning
B、roasting
C、browning
D、scorching
答案C
解析
转载请注明原文地址:https://kaotiyun.com/show/yNGd777K
本试题收录于： 职称英语综合类基础题库职称英语分类
0

职称英语综合类基础

职称英语

相关试题推荐
随机试题
最新回复(0)