建立目标时,考虑到建模的主观性和模糊性,可用()给以量化。

题型:填空题

问题:

建立目标时,考虑到建模的主观性和模糊性,可用()给以量化。

考点:数学运筹学运筹学题库
题型:填空题

阅读理解。

     How can you buy a meal for lunch without any money in your pocket? Students in Class 9, Grade 8 at

Mountain and Lake Middle School in Chengdu,Sichuan,have their ways. They give out flyers (传单), draw

portraits (人物素描) and work as waiters.

     The class, working in eight groups, finished the activity. Experiencing Life for Seven Hours,on March 18,

"I found students waste their food in the dining-hall," the class teacher, Deng Guiyong said, "So I held this

activity to help them understand how hard it is to make money."

     Jiang Yao, 15, and his group members stood in the streets giving out flyers for about two hours and got

the money for their lunch. Then they worked as waiters in a pizza restaurant-cleaning the floor;and toilets

and getting food for guests,"We were busy all along, so we were terribly exhausted after the day's hard work.

"said Jiang."We each got a pizza as a prize, which tasted much better than one I ate with my parents before."

     When Xie Ni's group didn't make any money in three hours, the members became nervous about their

lunch. The 14-year-old girl came up with the idea of drawing portraits to sell, "I sold four portraits and one

tourist even paid us 100 yuan for his portrait," said Xie.

     Xie realized that life is really hard. "We have to work hard to get the money to pay for even a simple meal."

Xie said, "We must value the happy life today."

     On top of making money, each group was asked to do at least five good deeds during the seven hours.

Students helped the old cross the road, gave directions to tourists and turned in a lost bus card.

1. From the teacher's words, we can see that the students ________.

A. usually waste food in their daily life

B. realize life is really not easy

C. know it's hard to make money

D. have their own ways to get food without money

2. The underlined word "exhausted" in Paragraph 3 means ________.

A. happy

B. crazy

C. tired

D. boring

3. In order to make money, the students have done all except ________.

A. help the old cross the road

B. give out flyers

C. draw portraits

D. work as waiters

4. The purpose of this activity is to ________.

A. let the students get food

B. help the students learn to value their today's life

C. help people in need

D. give the students a chance to learn to work

5. What's the best title for the passage?

A. Life Is Really Hard

B. It's Good To Be A Volunteer

C. How To work For People

D. Experiencing Life For Seven Hours

题型:填空题

生活日用水量(按60℃计)大于或等于m,且原水总硬度(以碳酸钙计)大于mg/L时,应当进行水质软化处理。()

A、5m,150mg/L

B、10m,300mg/L

C、15m,350mg/L

D、20m,400mg/L

题型:填空题

用户申请的电子邮箱是()。

A.通过邮局申请的个人信箱

B.邮件服务器内存中的一块区域

C.邮件服务器硬盘中的一块区域

D.用户硬盘中的一块区域

题型:填空题

当使用筛选审查法进行预算审查时,通常选择的筛选标准值是( )。

A.工程量、主材消耗量、造价的单方基本值

B.主材消耗量、造价、用工的单方基本值

C.工程量、主材消耗量、用工的单方基本值

D.工程量、造价、用工的单方基本值

题型:填空题

在下列情形中,用人单位不得解除劳动合同的是()

A.职工李某因工负伤而丧失劳动能力

B.职工李某因盗窃机动车一辆而被人民法院判处刑罚

C.女职工徐某未婚怀孕

D.职工张某被派往境外逾期未归

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