90. Which of the following statements about sexual transmitted diseases is wrong？
(A) If you have a sexually transmitted disease, you will not get another sexuallytransmitted disease.
(B) The pathogen of gonorrhea is Neisseria gonorrhoeae.
(C) Non-gonococcal urethritis may be infected by chlamydia.
(D) The fetus may be infected with syphilis from their mother.