Which TWO materials can be used as a substratum? A．oxygen-rich solution

游客2024-01-07 59

问题 Which TWO materials can be used as a substratum?
A．oxygen-rich solution
B．coconut fibre
C．mineral wool
D．rock
E．paper fibre [br]

选项

答案 C

解析

转载请注明原文地址:https://tihaiku.com/zcyy/3341016.html

相关试题推荐

随机试题

最新回复(0)

【31】[br]Trucksleavethematerialsonthe______.[originaltext]Presenter: