2. 外语
  3. Nowadays many scientists depend on radiocarbon for dating age-old objects. An atom of ordinary carbon has six protons and eight

Nowadays many scientists depend on radiocarbon for dating age-old objects. An atom of ordinary carbon has six protons and eight

admin2012-09-10  60
问题 Nowadays many scientists depend on radiocarbon for dating age-old objects.
An atom of ordinary carbon has six protons and eight neutrons.
选项 A、Right
B、Wrong
C、Not mentioned
答案B
解析 这句话是错的，答案在第二段第二句：An atom of ordinary carbon，called carbon-12，has six protons(质子)and six neutrons(中子)in its nucleus．…普通的碳原子有6个中子。
转载请注明原文地址:https://kaotiyun.com/show/amQd777K
本试题收录于： 职称英语理工类C级题库职称英语分类
0

职称英语理工类C级

职称英语

相关试题推荐
随机试题
最新回复(0)