-I'm a teenager's mother. Sometimes I don't know __________.

-Love and be understanding.[ ]

A. what my son needs most

B. what does my son want to get

C. why my son gets annoyed very often

通过干扰核酸合成发挥作用的抗真菌药是

A．克霉唑

B．酮康唑

C．两性霉素B

D．制霉菌素

E．氟胞嘧啶