When the weather outdoors gets warmer， flowers appear and birds become more active. Spring has sprung！　　Sometimes these ......

目的 观察中药涌泉穴外敷对发热患儿的降温效果.方法 选择发热患儿198例,随机分为观察组102例和对照组96例,观察组用中药在涌泉穴......

The structures in engineering can be simplified into elastic beams with concentrated masses and elastic spring supports.......