问题 填空题

When you stop and think about your high school or college alma mater, were your experiences more positive or negative Do your feelings of (1) in that school have anything to do with whether or not your school was single-sex or coed (2) to send their children to single-sex schools, because they feel both (3) when they study in the company of students of the same sex. They (4) .
For years, only parents who could afford to send their children to private schools, or who had (5) , chose single-sex education for their children. Single-sex schooling was (6) for most American families. Today, however, along with (7) , public schools are experimenting with the idea of (8) .
Girls may be the ones who benefit most from single-sex schooling. Studies have shown that (9) in coed classrooms because teachers sometimes pay more attention to boys. Girls’ (10) toward their studies tends to disappear as they begin to feel less successful. They start to (11) outperform them in math and science. As boys (12) , girls start to lose it. Moreover, adolescence is (13) for girls. As they experience adolescent changes, some girls become depressed, develop an addiction, or suffer from (14) .
In the early 1990s, some influential people said that being in single-sex classes could (15) . Schools across the country began creating single-sex classrooms and schools. But many critics claim that (16) may actually be detrimental to a girl’s education because they (17) of sex differences.
The renewed interest in single-sex schooling (18) among Americans. Those who give it full endorsement believe girls need an all-female environment to take risks and find their own voices. Those who (19) of single-sex schooling wonder whether students’ lack of achievement warrants returning to an educational system that divides the sexes. They believe there is no (20) .

答案

参考答案:begin to gain confidence

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问答题 案例分析题

【BSC】某局有一个小区单载频配置,有一天手机用户投诉说基站附近该小区信号不好,话音质量差。工程师拿着测试手机到基站测试,发现手机能上网,但是即使锁定该小区频点拨打电话,也立即被指配到附近其它基站的载频上,且话音质量不好。

通过一些操作,得到以下信息:

1)该基站没有任何告警。

2)查看话统,发现该小区TCH根本就没有话务量,切换接入也没有;SDCCH有占用请求,但是全部失败。

3)跟踪Abis口信令,立即指配命令所指配显示载频频点号为7A,也就是122,对该小区强制发送系统消息,在SYSTEMIMFO1中表明载频频点也是7A即122。

4)打开基站远端维护台,获取小区属性表明频点却是118;发现基站工作频点有疑问,查询BSC数管台,检查该小区有关频点信息的表格《小区分配表》、《载频配置表》,数据配置一致,没有错误,频点为118。

5)对《小区分配表》、《载频配置表》两个表查看主机,发现主机中频点为122。

6)询问现场工程师,说该站以前在网优中曾经修改过频点,原来工作频点为122,后来改为118,采用动态设定设定到主机,成功更改后正常运行了一段时间,在出现用户投诉前,该基站所在模块又成功做过两次MPU主备倒换操作。

根据这些信息,定位出了问题所在,在实验室模拟,该问题得到重现,请回答以下问题:

请根据这些信息推断产生这个现象的原因。