本帖最後由 比得大帝 於 2011-11-7 10:59 編輯
1. In traditional science, fungi is grouped under the kingdom of PLANT. However, with later developments in microbiology, in the 19th century people felt that another kingdom was required to classify newly discovered micro-organisms. The introduction of the new kingdom Protista in addition to the kingdom of Plant and Animal.
2. 第二條問題的答案好有問題. 即係問: 人重定大笨象重? 答案係不肯定, 因為冇講幾多個人同幾多隻大笨象....咁都得?
當問題冇說明volume, 應該assume是指同一volume, under same envirnoment, same pressure, same gravity....
如果用第二條問題答案引申, 即係乜嘢都唔肯定. 如: 同樣體積的水重或鐵重? 答案係唔肯定, 因為冇講gravity. 在地球的1cc的水, 比在月球1cc鐵重...... |