问题
问答题 简答题
生物防治法是什么？
答案
参考答案：
生物防治就是有益生物及其代谢产物来防治害虫，它包括以虫治虫、以菌治虫及其它有益动物的利用、昆虫激素的利用、不育处理技术的利用等。
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生物防治法是什么？
参考答案：
生物防治就是有益生物及其代谢产物来防治害虫，它包括以虫治虫、以菌治虫及其它有益动物的利用、昆虫激素的利用、不育处理技术的利用等。
| 阅读下面对话，从方框内7个选项中选择5个恰当的句子完成此对话，并将其序号填入题前括号内。 | |
B: I have an unreal dream. A: 1. B: I hope to be a Mars citizen (市民). A: It is perhaps, a true dream. B: 2. A: I see, there are so many people on such a small earth. It is too crowded everywhere. B: There will be more babies born this century on our planet. A: 3. B: So I hope to be a citizen who lives on Mars. A: It is a good idea to solve the crowded problem of our planet. B: 4. A: The scientist said that there is no air, no water and no life on it. 5. B: I don't think so, but I am sure man's dream to live on Mars will come true one day. A: Perhaps our dream will come true before long. |
