非婚生子女的认领,一般适用于()。(生父母各自另外结婚)
参考答案:非婚生子女无法准正的情形
用化学用语填空.
氦气 ;两个水分子 ;钠离子 ;三个氮原子 ;硫酸钙 .
She has been skating for _____. [ ]
A. three and half years
B. three and half a year
C. three and a half year
D. three years and half