The reactions of fish to AC can be distinguished into four stages: electrifying, electrotaxis, electronarcosis and electrocuting.鱼对交流电的反应可分成四个阶段: 感电 、 定向 、 麻醉和击昏反应....
The professors are deliberating over the post graduates dissertations.教授们正在商讨研究生的论文.Most of the nervous students began scribbling out long dissertations.大多数学生很紧张,都开始专心地写他们的论文.The pape proposes a project of citation analy...