神经梅毒的首选治疗药物是 __________ 。
参考答案:青霉素G
He has a bad cold. He shouldn't eat___________for 24 hours. [ ]
A. something
B. nothing
C. anything
D. none
Jackson结构化程序设计方法是英国的M.Jackson提出的,它是一种面向【 】的设 计方法。