转炉吹炼过程氧枪枪位控制的原则是()。
A.化好渣,不喷溅、快速脱碳和熔池均匀升温
B.不产生喷溅和粘枪
C.不产生返干和喷溅
D.化好渣为原则
参考答案:A
男性,65岁,高血压病史10年,有家族史,多次测血压190~200/110mmHg,肌酐5mg/dl。
该患者诊断()
A.2级高血压,极高危
B.3级高血压,高危
C.3级高血压,极高危
D.2级高血压,中危
E.2级高血压,高危
Although KG for a vessel in lightweight is relatively high, the vessel is stiff because().
A.KM is small
B.KM is high
C.BL is smal
l D.KB is large