[单项选择]Most of suicide victims are（）
A. middle-aged males
B. men from age 40 to the mid-60s
C. blue collar workers
D. white collar workers

[单项选择]Most of suicide victims are ______.
A. middle-aged males
B. men from age 40 to the mid-60s
C. blue collar workers
D. white collar workers

[单项选择]Children are (among) the most frequent victims of violent, (drug-related) crimes (that) have nothing (doing with) the cost of acquiring the drugs.
A. among
B. drug-related
C. that
D. doing with

[单项选择]The most visible victims of pollution, fish, are only a link in a chain from microscopic life to man.
A. 鱼是最显而易见的污染受害者，但它只不过是从微生物到人类这一长链中的一环罢了。
B. 在从微生物到人类这一长链中，鱼是污染的唯一受害者，而且是最容易看见的。
C. 污染影响着所有的生物界，但鱼是最显而易见的受害者。
D. 最明显的污染受害者们构成了从微生物到人类的长链，而鱼则仅仅是其中的一环。

[单项选择]

Suicide has been a cause of concern in most societies for a long time. The classical Greeks, for example, required people who wanted to kill themselves to get permission from the senate. While this law is not without humor by today’ s standards, it clearly shows an awareness of the problem in times gone by. In today’ s society, suicide is much more prevalent than we want to admit. Why do people try to take their own lives
The motives for suicide can be categorized into areas such as failure, wrath, the need for attention, stress, and so on. However, the qualities of a person who wants to take his own life change from person to person, making it difficult to depict (描写) the typical victim. To make the problem even more involved, people will often camouflage (掩盖) their true feelings, thus causing their friends to disregard problems that should be viewed as serious.
In the US, a network of centers has been created to attempt to prevent suicides. P
A. relevant
B. kind
C. serious
D. effective