In 1796 investigations into the chemical nature of diamond concluded ______a for

游客2025-02-09 0

问题 In 1796 investigations into the chemical nature of diamond concluded ______a form of pure carbon.

选项 A、that it
B、is it
C、that it is
D、is that

答案 C

解析

转载请注明原文地址:https://tihaiku.com/zcyy/3949303.html

相关试题推荐

随机试题

最新回复(0)

The(chemicalelement)chlorineisacorrosive,greenish-yellowgas(that)has(