单选题:重组DNA技术可能不需要( )。 题目分类:初中生物 题目类型:单选题 查看权限:VIP 题目内容: 重组DNA技术可能不需要( )。 A.载体 B.噬菌体 C.供体DNA D.限制性核酸内切酶 参考答案: 答案解析:
Which of the following is not the most popular genre of onl Which of the following is not the most popular genre of online novels?A.Modern 分类:初中生物 题型:单选题 查看答案
What is the teacher doing in terms on error correction?" Mak What is the teacher doing in terms on error correction?" Make a sentence with " 分类:初中生物 题型:单选题 查看答案
Which of the following statements about meaningful practice Which of the following statements about meaningful practice in grammar teaching 分类:初中生物 题型:单选题 查看答案
The word "chucked" in Para.2 can be replaced by The word "chucked" in Para.2 can be replaced byA.gave up B.changed C.dreamed of 分类:初中生物 题型:单选题 查看答案
某岛屿上的居民与该岛上的草、羊、兔和狐构成的食物网如下图。由于居民大量猎杀狐,导致其濒临灭绝,使兔的数量大量增加,随后由 某岛屿上的居民与该岛上的草、羊、兔和狐构成的食物网如下图。由于居民大量猎杀狐,导致其濒临灭绝,使兔的数量大量增加,随后由于兔瘟热病毒引起的兔疫使兔的数量大量减少 分类:初中生物 题型:单选题 查看答案