to fimmm.4399.mmmll, I take it to be impossible: the arteries would then have to fill while they contracted, and yet not become distended. But ,y receive blood from the heart? If it be answered: during the systole,
WWW.YSDVD.COM【官方新站】WWW.UUU65.COM
您在这个论坛的权限:
您不能在这个论坛回复主题