焊接后热处理常用的方法有消除应力处理,正火,调质处理等。()
参考答案:对
男孩,9岁,因水肿、血尿诊断为急性肾炎入院,症状好转后出院随访,8周后C3补体仍明显低于正常,应考虑为()
A.狼疮性肾炎
B.IgA肾病
C.膜增生性肾炎
D.膜性肾病
E.乙肝病毒相关肾炎
Lee came to Beijing in 2005. He has been here _____ than you. [ ]
A. long
B. longer
C. longest
D. the longest