航空活塞发动机汽缸积炭,发动机压缩比将().
A.减小
B.增大
C.不变
D.开始增大而后减小
参考答案:B
The joke the naughty boy _____ his teacher made many people angry. [ ]
A. made on
B. played on
C. played to
D. made to
女性,52岁,有胆管结石病史,近2天来右上腹痛,体温37.8℃,2小时前突然畏寒、寒战,体温达40℃,精神紧张兴奋、口渴、面色苍白、脉搏98次/分,有力,血压14.7.128kPa(110.96mmHg),尿量每小时26ml。
下列哪项治疗原则是错误的()。
A.联合应用抗菌药物
B.积极补充血容量
C.尽早做胆管引流
D.纠正酸中毒
E.静脉滴注间羟胺