ZG80—1500型电机车在高压辅助电路中,控制通风电机的电磁接触器是()。
A.51
B.52
C.53
D.54
参考答案:C
鼻窦毛霉菌病治疗原则是()。
A.清除鼻窦病灶,抗生素预防合并感染
B.清除鼻窦病灶,窦口充分引流
C.广泛去除局部坏死组织;全身应用抗真菌制剂
D.鼻腔局部用皮质激素和抗真菌药
E.静脉点滴大剂量抗真菌药物
Hannah was busy with work then but she still tried her best to some time from her tight schedule to visit her mother.
A.cut out
B.squeeze out
C.leave out
D.dig out