如图为某哺乳动物生殖过程示意图(b为卵细胞，c为体细胞)。下列相关的叙述中不正确的是
A．产生图中a、b、c三种细胞的方式分别是：减数分裂、减数分裂、有丝分裂
B．动物个体②的产生，表明高度分化的动物细胞，其细胞核仍具有全能性
C．图中产生动物个体①和②的繁殖方式分别是卵式生殖和无性生殖
D．体细胞C提供细胞核，因此动物个体②与体细胞C的性状相同，与动物个体①完全不同
答案：D
| 短文改错 下面短文中有10处错误,每句最多2处错误,请在有错误的地方增加、删除或修改某个单词. 增加:在缺词处加一个漏字符号(∧) ,并在其下面加上该加的词. 删除:把多余的词用斜线(\) 划掉. 修改:在错的词下划一横线,并在该词下面写上修改后的词. 注意:1.每处错误及其修改仅限一词； 2.只允许修改10处,多者(从11处起)不计分. | |
| Time flies as an arrow. I'm already in the second half of senior grade 3 before I realized it. It is only a little more than three months before I graduate middle school. At the present, I'm busy reviewing my lessons in order to take the college entrance examination. I hope to go to Beijing University, that is one of the best universities not only in China but also in the world. I'll try my best to turn my dream to reality. Most of my classmates are also studying very hard to realize our wishes. I do believe everyone will be able to enter into a very good university and college. | 1. _____ 2. _____ 3. _____ 4. _____ 5. _____ 6. _____ 7. _____ 8. _____ 9. _____ 10. _____ |