寻常型天疱疮()
A.带状疱疹病毒侵犯面神经睫状神经节
B.尼氏征阳性
C.口、眼、会阴出现溃疡
D.口腔粘膜上皮出现过角化及异常增生
E.幼儿舌系带两侧出现溃疡
参考答案:B
— Can you read the sign, sir? No smoking allowed in the lift!
— _____. [ ]
A. Never mind
B. Don't mention it
C. Sure, I don't smoke
D. Pardon me
高炉采用放风坐料时,如果料做不下来,应()。
A.等风压降至零位并打开视孔盖
B.可用热风炉倒流使高炉负压帮助
C.反复烧空炉缸再进行坐料。