下列有关一粒花生米和一粒玉米发育的叙述,其中只属于一粒玉米的发育是( ) A.受 发布时间:2017-06-09 16:20 │ 来源:www.tikuol.com 题型:选择题 问题: 下列有关一粒花生米和一粒玉米发育的叙述,其中只属于一粒玉米的发育是( )A.受精卵发育成胚B.受精极核发育成胚乳C.珠被发育成种皮D.子房壁发育成果皮
题型:选择题 ----Do you hear that Mary quarreled with Lily this morning?----Are you sure?But they acted_____nothing had happened.A.as ifB.as long asC.even ifD.so that 查看答案