问题 填空题

氯处理工段()、()、()、()等处安装U型压力计对系统压力降做指示,在日常巡检过程中注意观察各U型压力计压力指示,若出现连接管线及玻璃管破损,及时关闭前端的隔膜阀,防止氯气外溢或系统吸入空气。

答案

参考答案:氯水洗涤塔、钛冷却器、水雾捕集器、填料塔

填空题
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     Having a husband means an extra seven hours of housework each week for women, according to a new

study. For men, getting married saves an hour of housework a week. "It's a well-known pattern," said lead

researcher Frank Stafford at University of Michigan's Institute for Social Research. "Men usually work more

outside the home, while women take on more of the housework."

     He points out that differences among households (家庭) exist. But in general, marriage means more

housework for women and less for men. "And the situation gets worse for women when they have children."

Stafford said.

     Overall, times are changing in the American home. In 1976, women busied themselves with 26 weekly

hours of sweeping-and-dusting work, compared with 17 hours in 2005. Men are taking on more housework,

more than doubling their housework hours from six in 1976 to 13 in 2005.

     Single women in their 20s and 30s did the least housework, about 12 weekly hours, while married women

in their 60s and 70s did the most-about 21 hours a week.

     Men showed a somewhat different pattern, with older men picking up the broom more often than younger

men. Single men worked the hardest around the house, more than that of all other age groups of married men.

     Having children increases housework even further. With more than three, for example, wives took on more

of the extra work, clocking about 28 hours a week compared with husbands' 10 hours.

1. According to the"well-known pattern" in Paragraph 1, a married man _____.

A. takes on heavier work

B. does more housework

C. is the main breadwinner

D. is the master of the house

2. How many hours of housework did men do every week in the 1970s?

A. About 28

B. About 26

C. About 13

D. About 6

3. What kind of man is doing most housework according to the text?

A. An unmarried man.

B. An older married man.

C. A younger married man.

D. A married man with children.

4. What can we conclude from Stafford's research?

A. Marriage gives men more freedom.

B. Marriage has effects on job choices.

C. Housework sharing changes over time.

D. Having children means doubled housework.