题目内容

水田中不宜使用硝态氮。

A. 对
B. 错

查看答案

搜索结果不匹配？点我反馈

更多问题

[音频]2. Listen again for the details and fill in the blanks with what you hear.1) I thought it had something to do with the climate. The temperature 1 cooler and _2______.

[音频]2) Yeah, that’s one theory. Another idea is that they _1____.

[音频]3) And you know, there’s even a theory that they __________ from outer space.

[音频]1. Listen to the dialogue for the main ideas and answer the following questions.1) What are the possible reasons why dinosaurs disappeared?