焊接工艺规程必须以相应的（）为依据。
A.焊接工艺方案
B.焊接工艺设计书
C.焊接工艺评定报告
D.焊接工艺过程卡片
参考答案：C
患者老年男性，无痛性血尿1个月，超声可见膀胱三角区 * * 状隆起性病变，范围约30mm×24mm，基底部较宽，不随体位移动，首选诊断是（）。
A.膀胱结石
B.膀胱内血凝块
C.血管瘤
D.膀胱癌
E.膀胱内异物
27. _____ in a friendly way, they both were satisfied with the result.
A．Having been settled their quarrel
B．Their quarrel being settled
C．Their quarrel settled
D．After their quarrel settled
