——When is Day?——It's on June 1st, Dave.
A:Child
B:Children
C:Child's
D:Children's
如图是某种动物细胞分裂不同时期的示意图,其中一定不是精子形成过程的是( )
已知2,a,b,c,32成等比数列,求a,b,c的值.
How would you like if you were watching your favorite TV program and someone came into the room and just shut it off without asking you?