【单选题】下图为某种生物细胞的亚显微结构模式图。则 [ ]
C.
若将该细胞置于0.01mol/L的蔗糖溶液中,会发生质壁分离
D.
有丝分裂前期,该种生物的细胞可由中心体发出的星射线形成纺锤体
【简答题】根据情景选择句子。 1. 当你告诉别人就这么干吧,说: [ ] A. Do it quickly, please. B. Just do it, please. C. Do it, please. 2. 当你问谁会倒垃圾时,说: [ ] A. Who can empty the trash? B. Who can put away the clothes? C. Who can w...
【单选题】某同学用显微镜观察某种生物的细胞结构,她判断该细胞是植物细胞,她的理由是( )
【单选题】饥饿、饱胀和渴的感觉,窒息的感觉,疲劳的感觉等,属于人的?
【简答题】句型转换 1. Please phone me this evening.(改为同义句) Please_____ _____ _____this evening. 2. Linda does some shopping; on Sundays.(对画线部分提问) _____ _____ Linda do on Sundays? 3. He will try to save money as muc...
【简答题】PLEASE DO NOT LITTER ___________________________________
【单选题】下列关于细胞核的说法,不正确的是 [ ]