血小板的生理功能有A.损伤刺激血小板释放使局部血管收缩的物质  B.在损伤处血小板粘

患者，女性，52岁。肝硬化合并门静脉高压征，近日拟行肝门腔静脉吻合术，旨在（）

A.降低肝门静脉压力

B.改善肝功能

C.消除脾功能亢进

D.促进腹水吸收

E.减轻侧支循环扩张

不超过钢轨顶面的标志，可设在距钢轨头部外侧不少于（）处。

A.1.25m

B.1.35m

C.1.45m

D.1.55m

使用的数据表如下：
图书(图书编号C(6)，书名C(16)，作者C(6)，出版单位C(20)，单价N(6，2))
读者(借书证号C(4)，单位C(8)，姓名C(6)，性别C(2)，职称C(6)，地址C(20))
借阅(借书证号C(4)，图书编号C(6)，借书日期D(8)，还书日期D(8))

求ABC单位借阅图书的读者人数，正确的命令是

A. SELECT COUNT (DISTINCT借书证号) FROM 借阅 WHERE;
借书证号 IN(SELECT 借书证号 FROM 读者 WHERE 单位="ABC")
B. SELECT SUM(DISTINCT 借书证号)FROM 借阅 WHERE;
借书证号 IN(SELECT 借书证号 FROM 借阅 WHERE 单位="ABC")
C. SELECT COUNT(DISTINCT 借书证号) FROM 借阅 WHERE;
借书证号 IN(SELECT借书证号FROM借阅WHERE单位="ABC")
D. SELECT SUM(DISTINCT 借书证号)FROM 借阅 WHERE;
借书证号 IN(SELECT 借书证号 FROM 读者 WHERE 单位="ABC")

• A. Is that clear
• B. Can it do some washing
• C. Why do you think it is useful
• D. It appeared several centuries ago, didn’t it
• E. Will robots be the same as people
• F. What is it
• G. Could you please tell me more about robots
  A: Today we are going to talk about a great invention. It looks like a human being. (61)
  B: It’s a robot. (62)
  A: Of course not. The first robot was invented in 1921.
  B: (63)
  A: Sure. They can take the place of humans to do some boring work. They can also do a lot of dangerous work instead of humans.
  B: (64)
  A: No. Robots can do a lot of work instead of people in many ways, but people wouldn’t be replaced by robots. (65)
  B: We get it.

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