单项选择题

The gender of the baby is decided by ______.

A．the father's DNA
B．the mother's DNA
C．the father's sperm
D．the mother's egg
<上一题 目录 下一题>
热门 试题

单项选择题
A．notB．besidesC．evenD．finally
A．not
B．besides
C．even
D．finally
单项选择题
A．maturedB．influencedC．effectedD．depended
A．matured
B．influenced
C．effected
D．depended
相关试题