刮削精度检查包括（）。A．尺寸精度  B．形状精度  C．位置精度  D．接配精度

阅读理解

Directions: Read the passage carefully. Then answer the questions or complete the statements in the fewest possible words.

     While contact between adolescents (between the ages of fifteen and nineteen) and their peers (同龄人) is a universal characteristic of all cultures, the nature and the degree of such contact vary a great deal. In

American contemporary society, adolescents spend much more time with their peers than with younger

children or adults.

     This pattern of age segregation(隔离) in American society did not become usual until the beginning of the industrialized society. Changes in the workplace separated children from adults, with adults working and children attending school. The dramatic increase of mothers in the workplace has further contributed

to the reduction in the amount of time adolescents spend with adults. School reform efforts during the

nineteenth century, which resulted in age-segregated schools and grades, have reduced the amount of time adolescents spend with younger children. Finally, the changes in population are considered a factor that

may have contributed to the emergence of adolescent peer culture. From 1955 t0 1975, the adolescent

population increased dramatically, from 11 percent t0 20.9 percent. This increase in the number of

adolescents might be a contributing factor to the increase in adolescent peer culture in terms of growth in

size.

     Research supports the view that adolescents spend a great deal of time with their peers. Reed Larson

and his colleagues examined adolescents' daily activities and found that they spend more time talking to

their friends than engaging in any other activity. In a typical week, high school students will spend twice

as much time with their peers as with adults. This gradual withdrawal from adults begins in early

adolescence. In sixth grade, adults (excluding parents) account for only 25 percent of adolescent social

networks. Another important characteristic of  adolescent peer culture is its increasingly autonomous (白

治的) function. While childhood peer groups are conducted under the close supervision of parents,

adolescent peer groups typically make an effort to escape adult supervision and usually succeed in

doing so.

     (Note: Answer the questions or complete the statements in NO MORE THAN EIGHT WORDS.)

1. "This pattern of age segregation" refers to the phenomenon that adolescents segregate themselves

      from          

2. Besides changes in the workplace,                  are the other two factors contributing to adolescent

    peer culture.

3. When do adolescents start to spend less time with adults?

____________________________________________________________

4. How do adolescent peer groups differ from childhood peer groups?

_____________________________________________________________

2006年初，甲国X公司(卖方)与中国Y公司(买方)订立货物买卖合同。Y公司向中国某银行申请开出了不可撤销信用证。在合同履行过程中，Y公司派驻甲国的业务人员了解到，该批货物很可能与合同严重不符且没有价值，于是紧急通知Y公司总部。Y公司随即向有管辖权的中国法院提出申请，要求裁定止付信用证项下的款项。依照2005年《最高人民法院关于审理信用证纠纷案件若干问题的规定》，下列表述正确的有( )。

A．Y公司须证明存在X公司交付的货物无价值或有其他信用证欺诈行为的事实，其要求才可能得到支持

B．开证行如发现有信用证欺诈事实并认为将会给其造成难以弥补的损害时，也可以向法院申请中止支付信用证项下的款项

C．只有在法院确认国外议付行尚未善意地履行付款义务的情况下，才能裁定止付信用证项下的款项

D．法院接受中止支付信用证项下款项的申请后，须在48小时内作出裁定

无法下载密钥一般是由于（）造成的。

A.密码键盘坏

B.密码键盘未初始化

C.密码键盘没有与PINPAD借口插接好

D.密钥设置错误

实现间套作增产、增效的关键是（）

A.种植密度的安排

B.幅宽的确定

C.带宽的确定

D.间距的调整

犯罪经过（）期限不再追诉。

A、法定最高刑为不满五年有期徒刑的，经过五年

B、法定最高刑为五年以上不满十年有期徒刑的，经过十年

C、法定最高刑为十年以上有期徒刑的，经过十五年

D、法定最高刑为无期徒刑、死刑的，经过二十五年