Biology Viva Questions Class 12: The Class 12 Biology practical examination plays a crucial role in the board results, and the viva voce (oral exam) often decides the final impression of a student’s ...

Compilation of repeated questions from past Biology papers. Downloadable PDF of important questions available. Covers key chapters like Reproduction, Genetics, and Biotechnology. CBSE Class 12 Biology ...

一次重构，让我处理DataFrame条件逻辑的速度提升了4倍。还记得那个周五的下午，我盯着屏幕上这段代码发呆：df["category"] = np.where(df["score"] > 90, "A", np.where(df["score"] ...

After killing the snake, which he said measured between three and four feet long and was almost his height, Otieno transported both the dead python and his dog to a police station. Police later ...

The loan of two giant pandas from China to Dublin Zoo in 1986 was hailed a great success – until one of the pandas died some time after returning to China. Ming Ming and Ping Ping spent 100 days at ...