A:通过培养植物细胞,可获取大量的细胞代谢产物
B:在培养基中加入不同浓度的氯化钠溶液,可诱发和筛选出抗盐植株
C:原生质体培养结合基因工程技术,可获得具有特定性状的新植株
D:由于植物细胞具有全能性,同种植物的不同基因型个体,它们细胞全能性的表达程度相同
王娜2003年参加高考,因未收到录取通知书,以为落榜便外出打工,后结婚生子。2015年,她发现自己当年并非落榜,而是考上了大学但被顶替。王娜娜被侵犯的权利是( )
阅读短文, 判断句子对“正确”错“错误”。
I'm a girl from Guangzhou. I have a pen pal. His name is John. He's an Australian boy. He's twelve years old. He studies in Guangzhou now. John is a good student. He studies hard every day. John often cooks breakfast, lunch and dinner by himself. He likes Chinese food very much. He is interested in cooking. And he's good at cooking.
法律和规则是衡最政治参与有序与无序的准绳。( )
若这3个水口的水流都是匀速的,且2个进水口的水流速度一样,水池中的蓄水量 y(万米3)与时间t(时)之间的关系如图所示,请根据图象解决下列问题: