问题 单项选择题

由于二氧化碳灭火剂具有灭火不留痕迹,并有一定的电绝缘性能等特点,因此更适宜于扑救( )V以下的带电电器、贵重设备、图书资料、仪器仪表等场所的初起火灾,以及一般可燃液体的火灾,即其适用范围是A、B类火灾和低压带电火灾。

A.600

B.500

C.400

D.300

答案

参考答案:A

解析:由于二氧化碳灭火剂具有灭火不田痕迹,并有一定的电绝缘性能等特点,因此更适宜于扑救 600V以下的带电电器、贵重设备、图书资料、仪器仪表等场所的初起火灾,以及一般可燃液体的火灾。即其适用范围是A、B类火灾和低压带电火灾。

选择题
单项选择题

Sadness isn’t manly—this Eric Weaver knew. When depression engulfed this New York police sergeant, it took a different guise: a near-constant state of anger. "One minute I’d be okay and the next minute I’d be screaming at my kids and punching the wall," he recalls. "My kids would ask, ’What’s wrong with Daddy Why’s he so mad all the time’" For years, Weaver didn’t know what was wrong.

Weaver’s confusion about what tortured him was not unusual. Roughly a third of the 18 million or more Americans who suffer depression each year are men. Yet all too often, experts say, men fail to recognize the symptoms and get the treatment they need.

For years, experts suspected that gender makes a big difference in depression. Studies from New York to New Zealand have repeatedly found the same startling statistic: About twice as many women as men suffer from depression. That finding was considered one of the bedrock facts of modern mental health. Yet it has recently come under attack from critics who are concerned about underreporting of male depression.

William Pollack, Director of the Center for Men at McLean Hospital, is leading the charge against the well-entrenched depression gender gap. He argues that men’s rate of depression may be nearly equal to women’s. Just look at suicide rates, he says: Male suicides outnumber females four to one. That ratio "is way too high to say that men’s depression numbers are so low," he notes.

Pollack and others contend that male depression goes unrecognized because, unlike the female version, it often doesn’t fit the textbook signs—at least in the early stages. Clinical depression at later stages looks much the same in both sexes. But in the prelude to a breakdown, that deepening despair is often expressed in very different ways. Instead of being weepy, men are more apt to be irritable and angry—moods that aren’t included in the classic diagnostic tests. "Their sadness and helplessness are hidden behind a mask of anger," says Pollack.

"Men tend to act out" to avoid dealing with uncomfortable feelings, adds Fredric Rabinowitz, a psychologist who works primarily with men. If they feel bad, they’re apt to get into fights on the job or at home, withdraw from family and friends, become obsessed with work or hobbies. Most significantly, men often turn to drinking or drugs. Men have two to four times the rate of substance abuse problems as women, and Pollack contends that if this was recognized as a sign of depression, the gender gap would substantially narrow.

By saying "Men tend to act out" (Line 1, Para. 6), the author implies that()

A. men often fight outside

B. men usually hide their uncomfortable feelings

C. men would choose violent acts outside

D. men are easily offended by others