材料弯曲变形后,中性层长度不变,因此弯曲前可按中性层计算毛坯长度。
参考答案:对
男,20岁,发热20天,心悸、气短、乏力5天住院。体检:体温37.9℃,血压:17.3/12.0kPa(130/90mmHg),两肺细湿啰音,心界扩大,心尖闻及S3,心率128次/分,下肢水肿。血CK、CK-MB增高
以下治疗哪项错误()。
A.常规量利尿剂
B.常规量洋地黄
C.扩张容量血管药物
D.扩张阻力血管药物
E.扩张容量及阻力血管药物
词汇:根据句意和汉语提示,在空格中填入正确的单词(每空限填一词)。(每
小题1分,计7分)
小题1:Don’t worry. I have made much __________ (进步) in learning English.
小题2:This is a good shop. It brings us ___________(极好的) service.
小题3:As we know, __________ (无一人) of us likes pollution.
小题4:Our living conditions have (改善) a lot.
小题5:They have been volunteers (自从)2009.
小题6:If you (不服从)the traffic rules, you may have an accident.
小题7: (虽然)he tried his best, he failed at last.