问题
填空题 案例分析题
下图是某细胞进行有丝分裂的简图，据图回答：
染色体数目加倍发生在[A]（）期图中，其原因是（）
答案
参考答案：后；着丝点分裂、姐妹染色单体分开成子染色体
搜题请搜索小程序“爱下问搜题”
下图是某细胞进行有丝分裂的简图，据图回答：
染色体数目加倍发生在[A]（）期图中，其原因是（）
参考答案：后；着丝点分裂、姐妹染色单体分开成子染色体
| 用方框中所给单词的适当形式填空，使短文正确、通顺。每词限用一次。 | |
different people to choose. Some hobbies are very popular, 2_________ others are quite unusual. You may choose one that you are interested 3_________. You may enjoy collecting things such as stamps, stones, foreign 4_________ and so on. If you like to work with your hands, you may enjoy model making and 5_________ cutting, which both need great attention in detail. Or you may 6_________ creative hobbies, like painting and writing. Many people 7_________ outdoor activities to indoor activities. They get great pleasure from 8_________, cycling and so on. which they can enjoy with others. Wherever you live, there 9_________ always a hobby for you to choose. The hobby can help you relax after your daily work. The hobby can give you many hours of pleasure and make your 10_________ time interesting and creative. The hobby can bring you happiness, knowledge and friendship. |