技术变革涉及( )。A．生产技术 B．产品的小改进 C．产品的更新 D．企业行政管

局域网的核心协议是( )。

A．IEEE 801标准

B．IEEE 802标准

C．SNA标准

D．非SNA标准

常规物业管理要求提供的相关服务的主要内容不包括（）。

A.项目机构的建立与日常运作机制的建立，包括机构设置、岗位安排、管理制度等

B.房屋及公用设施设备的管理

C.参与物业的竣工验收，并提出相应整改意见

D.客户管理、客户服务和便民措施

I was very disappointed not to be able to go to the jazz concert last Friday. The announcement in the paper said that you could buy tickets at the theater box office in Richland Hills any day between 10:00 and 4:00. Since I work from 9 o’clock to 5:30, the only time I could go to the theater was during my 45-minute lunch break. Unfortunately, the theater is on the other side of the town, and the bus service between my office and Richland Hills is not very good. But if you are lucky, you can make the round trip in 45 minutes. Last Monday, I stood at the bus stop for fifteen minutes waiting for a bus. By the time I saw one come around the corner, there was not enough time left to make the trip—so I gave up and went back to the office. The same thing happened on Tuesday, and again on Wednesday. On Thursday, my luck changed, I got on a bus right away and arrived at the theatre in exactly twenty minutes. When I got there, however, I found a long line of people at the box office. I heard one man say he had been waiting in line for over an hour. Realizing I would not have enough time to wait in line, I caught the next bus and headed back across the town. By Friday I realized my only hope was to make the trip by taxi. It was expensive, but I felt it would be worth hearing the concert. The trip by taxi only took 10 minutes, but it felt like an hour to me. When I got to the theatre, I was relieved to see that nobody was waiting in line. The reason, I quickly discovered, was that they had already sold all the tickets.

小题1:The writer is probably ______.

A．worker

B．a college teacher

C．manager of a company

D．a clerk小题2:He learned ______ that there would be a concert last Friday.

A．from his friends

B．from one of his colleagues

C．over the radio

D．from the newspaper小题3:He could go and buy the ticket ______.

A．any day before work hours

B．both before and after work hours

C．only during lunch time

D．on Saturday and Sunday小题4:The word “relieved” in the last two sentences may best be replaced by “______”.

A．surprised

B．pleased

C．puzzled

D．sorry小题5:The story is about ______.

A．a good concert

B．someone enjoying a good concert

C．someone trying to buy concert tickets for his friends

D．someone’s disappointment at not being able to go to the concert

当胶片尺寸大于暗盒尺寸，或增感屏粘贴不平造成屏-片局部接触不良，是造成影片中某一部分出现模糊的常见现象。检查床颤动、患者移动、摄影时间长会造成影像的整体模糊。暗盒漏光会使影像某一边缘部分过度感光。

摄影中减小运动模糊的叙述，错误的是

A．被照体固定
B．选择适当的呼吸方法
C．缩短曝光时间
D．缩短焦-片距
E．肢体应靠近胶片

男性，21岁，血压持续增高，阵发性加剧半年，血压升高时测定血中肾上腺素、去甲肾上腺素及其代谢产物（尿VMA）显著增高，最可能诊断为（）

A.肾实质性高血压

B.原发性醛固酮增多症

C.嗜铬细胞瘤

D.皮质醇增多症

E.高血压危象