支气管哮喘的治疗原则包括()
A.长期
B.持续
C.规范
D.个体化
E.均需使用抗生素
参考答案:A, B, C, D
______ down on the ground, he struggled to his feet and held up his head, _______his enemy.
A.Beating; focusing on
B.Beaten ; glaring at
C.Falling; stared at
D.Tripping ; fixed on
千分表的刻度盘上有100个等分,每一等分为0.01mm,由()指示。
A.大指针
B.小指针
C.测量杆
D.测量头