Nowadays many scientists depend on radiocarbon for dating age-old objects. The half-life of C-14 is about 25,000 years.

admin2010-01-16 64

问题 Nowadays many scientists depend on radiocarbon for dating age-old objects.
The half-life of C-14 is about 25,000 years.

选项 A、Right
B、Wrong
C、Not mentioned

答案C

解析本文并没有直接提到C-14的寿命有多长。

转载请注明原文地址:https://www.kaotiyun.com/show/1MQd777K

职称英语理工类B级

相关试题推荐

随机试题

最新回复(0)