A. C B. D C. G D. F
A. 雄蕊 B. 雌蕊 C. 刚毛 D. 柱头
A. 孕激素 B. 雄激素 C. 降钙素 D. 生长激素
A. 公司 B. 陪伴 C. 投诉 D. 完成
A. October the 1st B. November the 1st C. January the 1st December the 1st