下述说法中正确的是：埋藏较深（表面下6～50mm）的缺陷的检测（）。A.方法与检测表

张先生2年后可以获得100万元，年利率是10%，那么这笔钱的单利现值和复利现值分别为( )万元。

A．83.33；82.64
B．90.91；83.33
C．90.91；82.64
D．83.33；83.33

阅读理解。

     In the opinion of many people, the two-parent family is the correct way to raise children. Traditionally,

this has been as the most natural way, but single-parent families have had to face prejudices (偏见) against

their life-style. However, the single-parent family is the fastest growing type of family. In the United States,

a national survey showed that at least 50% of children will be members of a single-parent family. So we think

it is important to throw prejudices away and to see the advantages of single-parent families.

     When compared to two-parent families,single-parent families are usually at a disadvantage in some ways.

They are often in short of money,and children receive less attention. What's more, single parents can find

themselves under too much pressure of both work and home. Despite (尽管) these disadvantages, it is

possible for single-parent families to look for support from friends, schools, communities or other organizations. They need to remember that nobody can do it alone.

     Surprisingly,single-parent families also have some advantages over two-parent families. Single parents

have greater flexibility (灵活性) in spending time with children, because they don't have to consider the needs

of a husband or wife. So they can develop closer relationships with their children. Another advantage comes

from the fact that single parents often work together with their children to solve problems, which makes

children feel more needed and valued (尊重的).

     It's important to remember that single-parent families have,until now suffered (受到) prejudices from

some people.They think that it's easier for the children in single-parent families to drop out of school in teens,

and to be jobless in their early twenties. But, with the support from friends, schools and communities,

single-parent families become more accepted by society,and this situation is certain to improve. In the future

we will probably see these prejudices disappear.

1. What does the author mainly tell us in Paragraph 1?

A. People shouldn't have prejudices against single-parent families.

B. The single-parent family is not good for raising children.

C. The two-parent family is the correct way to raise children.

D. 50% of children will be members of a single-parent family in the USA.

2. Which disadvantage of single-parent families is NOT mentioned in Paragraph 2?

A. They are often in short of money.

B. Children may receive less attention.

C. Children also suffer from the prejudice.

D. Parents are under pressure of both work and home.

3. How can single parents make their children feel more needed and valued?

A. Don't consider the needs of others.

B. Pay more attention to their children.

C. Develop closer relationships with their children.

D. Discuss and solve problems together with their children.

4. Why does author believe that the situation of single-parent families will improve?

A. Single-parent families will be more accepted by society.

B. There will be fewer and fewer single-parent families.

C. Single parents will try best to protect and control their children.

D. People will understand that there are difficulties in single-parent families.

5. Which of the following may be the best title for this passage?

A. Advantages and Disadvantages

B. Changing Views on Single-parent Families

C. Best Life-style for Children

D. Comparing Two Types of Family

经历了“好”与“快”的博弈、“进”与“退”的抉择，“速度深圳”选择了割舍，不再以GDP论英雄，注重民生净福利，注重公民的文化权利，“速度深圳”矢志向“和谐深圳”、“效益深圳”演变。为推动上述演变需要政府（　　）

①贯彻以人为本的科学发展观　        ②更加重视维护和实现社会公平　

③在资源配置中起决定性作用　        ④重视推动科技创新和管理创新

A．①②③　

B．①②④　

C．①③④　

D．②③④

《生活垃圾填埋场污染控制标准》(GB 16889—2008)规定，不得在生活垃圾填埋场填埋处置的有( )。

A．禽畜养殖废物

B．生活垃圾堆肥处理产生的固态残余物

C．环境卫生机构收集或者自行收集的混合生活垃圾

D．未经处理的粪便

E．电子废物及其处理处置残余物

下列配合物的配位数不是6的是[ ]

A．K₂[Co(NCS)₄]

B．Na₂[SiF₆]

C．Na₃[AlF₆]

D．[Cu(NH₃)₄]Cl₂