The human skin forms ______against the action of physical, chemical, and bacteri

游客2025-02-09 34

问题 The human skin forms ______against the action of physical, chemical, and bacterial agents on the deeper tissues.

选项 A、how protective a barrier is
B、a protective barrier
C、a barrier protects
D、and which a barrier protects

答案 B

解析

转载请注明原文地址:https://www.tihaiku.com/zcyy/3949307.html

相关试题推荐

随机试题

最新回复(0)

Whichattractionmatchesthequestions?ChooseFIVEanswersfromtheboxandwri