三阶梯药物治疗原则是()
A．按阶梯给药
B．口服给药
C．按时给药
D．个体化用药
E．辅助用药
参考答案：A, B, C, D, E
_________ the help of man-made satellites, we can know what the weather will be like
in the next few days.
A．Under
B．With
C．Using
D．By
漂白的彩色相纸用双面涂塑厚纸
