如果猪的体细胞有19对染色体,生殖细胞中有19条染色体,则猪的受精卵中染色体数目是( )
A:38对
B:19条
C:19对
D:76条
图为某日天气符号,该日天气情况是( )
Look! There are some birds _______ in the sky. They are very beautiful.