如图1等腰梯形ABCD，∠B=60°，动点P从点B出发，沿BC，CD，DA运动至

阅读理解。

     My name is Lucy. I have two good friends, Mary and June. June and I are twelve years old. Mary is

 thirteen years old. My birthday is November 11th. June's birthday is September 11th . And Mary's

 birthday is January 18th. I like red, but they like green. Mary and June are in the same school. They have

  an Art Festival and a school trip every year, but I only have a Music Festival at my school.  

1. Lucy was born in _____.

    A. October      

    B. November        

    C. September      

    D. January

2. What does Lucy have at her school every year?

    A. An Art Festival.                  

    B. A school trip.

    C. A Music Festival.                  

    D. An Art Festival and a school trip.

患者男，35岁。皮肤、巩膜黄染3年，黄疸进行性加深但存在波动，反复发作高热寒战、上腹痛等症状，合并溃疡性结肠炎，无胆管结石病史。腹部查体无明显阳性体征。

最可能的诊断是（提示TBil175μmol/L，DBil152μmol/L，抗线粒体抗体（－），CA19-9（－）、CEA（－）。MRCP示：左右肝管汇合处及肝内胆管管腔多发狭窄，但表面平滑；肝内胆管的分支减少、僵直。）（）。

A.Caroli病

B.原发性胆汁性肝硬化

C.原发性硬化性胆管炎

D.胆管癌

E.胆管结石

F.自身免疫性肝病

嘉量是我国古代的标准量器。全套量器从小到大依次为：斛、斗、升、合、龠，象征着国家的统一和强盛。

按照技术要求对装配好的机器进行超出额定负荷范围的试验称为破坏性试验。

PLC应远离高压设备和输电线，至少要有（）的距离。