阅读下列短文，判断正（A）误（B）。

( )1. Jane often annoys her classmate in math classes.                       

( )2. Jane does best in P.E.                                                 

( )3. Jane is good at writing compositions.                                  

( )4. She needs to work hard at learning languages ,or she will fail in them.

( )5. According to the form, we can know Jane has got ten subjects.          

菌斑内细菌间的相互关系（）

A.共生

B.拮抗

C.竞争

D.共生、拮抗、竞争共存

E.因人而异