"Helen had something to eat before she left," put in Cecil anxiously.“海伦走之前吃了点儿东西，”塞西尔急忙插了一句。Australia, put in to bat, made a cautious start.轮到澳大利亚队出场击球，他们开始打得很谨慎。She put in some clothes, odds and ends, and make-up.她将一些衣...
Megaspore tetrad is linear. The chalazal megaspore develops into an embryo sac of Polygonum type.大孢子四分体为线形, 合点端功能大孢子发育成为蓼型胚囊.The chalazal megaspore of a linear tetrad develops into a polygonum type sac.四分体线行排列,合点端的大孢子发育为...