Glycine max（L.)Merr

My son thought of me as a tedious person because I liked talking about rules of grammar.

I’ll come right away.(翻译)

Because of Oppenheimer’s talent in physics, he was very welcomed by his teacher and fellow students in Germany.

Morus alba L

试述被子植物的受精作用及其生物学意义。

如何从外部形态和内部结构识别双子叶植物的幼茎和幼根？

简要说明十字花科和唇形科的识别要点。