蝶阀是通风系统中最常见的一种风阀。手柄式蝶阀的短管用厚度为（）的钢板（最好与风管壁厚

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     When an emergency situation occurs, observers are more likely to take action if there are few or no

other witnesses. This phenomenon is referred to as the bystander effect.

     The bystander effect is also called the Genovese effect, which is named after Catherine "Kitty"

Genovese, a young woman who was cruelly murdered on March 13, 1964. Early in the morning,

28-year-old Genovese was returning home from work. As she approached her apartment entrance, she

was attacked and stabbed (刺) by a man later identified as Winston Moseley. Despite Genovese's

repeated cries for help, none of the dozen or so people in the nearby apartment building who heard her

cries called police for help. The attack first began at 3:20, but it was not until 3:50 that someone first

contacted police.

     Many psychologists were set thinking by the incident, as well as most Americans. As the conclusion,

the bystander effect came out and later proved by a series of studies and experiments.

     There are two major factors that contribute to the bystander effect. First, the presence of other people creates a division of responsibility. Because there are other observers, individuals do not feel as much

pressure to take action, since the responsibility to take action is thought to be shared among all of those

present. The second reason is the need to behave in correct and socially acceptable ways. When other

observers fail to react, individuals often take this as a signal that a response is not needed or not

appropriate.

     Other researchers have found that onlookers are less likely to take action if the situation is ambiguous

(not clear). In the case of Kitty Genovese, many of the 38 witnesses reported that they believed that they were witnessing a "lovers' quarrel", and did not realize that the young woman was actually being murdered.

1. The bystander effect is also called the Genovese effect because        a woman surnamed Genovese.  

A. its discovery resulted from the murder of    

B. it somehow caused the murder of

C. it was actually discovered by        

D. it always makes people think of

2. It's likely that the neighbors didn't offer help because__________.

A. They believed in the bystander effect.        

B. They knew Genovese and Moseley well.

C. They were afraid of the murderer.    

D. They thought someone else might help.

3. Before deciding to offer help, observers may        , according to the psychologists.  

A. wait for sort of a signal

B. want to be sure it's appropriate to react

C. hesitate and estimate the risk of getting hurt

D. wonder if the victim is worth helping

4. The article seems to suggest that, if there had been     observers, Genovese might not have been

murdered.

A. no

B. braver

C. more

D. fewer

（）幕墙工程施工记录主要是检查记录

A、幕墙注胶

B、硅酮结构胶的技术性能指标

C、幕墙淋水

D、幕墙密封

E、幕墙变形

设有图书管理数据库：
图书(总编号C(6)，分类号C(8)，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)，总编号C(6)，借书日期D(8))
检索书价在15～25元(含15元和25元)之间的图书的书名、作者、书价和分类号，结果按分类号升序排序。
SELECT书名，作者，单价，分类号FROM图书；
WHERE (11) ；
ORDER BY (12) ；

某女，27岁。患类风湿性关节炎3年。现关节肿胀疼痛变形，屈伸受限，肌肉疼痛，痛有定处，晨僵，肌肤紫黯，肢体顽麻，舌红有瘀点，苔薄白，脉弦涩。其治疗宜

A．清热利湿，祛风通络
B．清热养阴，祛风通络
C．活血化瘀，祛痰通络
D．补益肝肾，祛风通络
E．祛风散寒，清热化湿

细水雾灭火系统按动作方式可分为（）。

A.高压系统

B.中低压系统

C.开式系统

D.闭式系统

E.半开半闭系统