山东省2020年专升本考试报名现场资格审核的规定

We first think of the traditional or nuclear family．This is a two-generation family,the father and the mother and their own children．Most couples wanted to have four children,two boys,two girls.
Some nuclear families,however,may add one or more grandparents to come to live with them,that is three generations．This kind of family with grandparents,parents,and grandchildren is called an extended family．This family type was not very common during the later half of the twentieth century,but it's becoming more common now as an elderly grandparent moves in to live with a son or daughter．This is more possible now that American homes have become larger．What is interesting,however,is that after the grandchildren move out of the home and start their own families,this extended family shrinks back to a nuclear family,with just two generations again living together,a grandparent and parents,with the grandchildren coming only for occasional visits．
Now,the fatherless or motherless family is one kind of what we call a single-parent family．In the fatherless family it's just the mother and her children．As I said,this can be the result of the husband's death,of an unmarried mother,of a separation or divorce．There are also a growing number of motherless families--where the father raises the children,for any of the same reasons．A motherless family may also be fatherless,but still a family with one adult．This is becoming more common in the big cities where a grandmother will raise her daughter's children while the daughter goes elsewhere to work.
One other new kind of family is becoming increasingly more common．A single parent with one or more children will marry again．Perhaps the other parent is also a single parent．Together they will start what is called a blended family,which blends together or combines the children from two other families.

How is a blended family formed?

A.A blended family is formed by two single-parent familie
B.A blended family is formed by a nuclear family and a grandparen
C.A blended family is formed by a nuclear family and grandparent
D.A blended family is formed by two fatherless familie

因债务人怠于行使其到期债权，债权人以自己名义向次债务人行使的请求其履行债务的权利是（ ）

A.代理权

B.撤销权

C.代位继承权

D.代位权

班主任工作计划一般包括（ ）

A.学期工作计划和具体活动计划
B.全面计划和专题计划
C.课内计划和课外计划
D.教学工作计划和思想工作计划

阅读巴金《爱尔克的灯光》中的一段文字。
黑暗来了。我的眼睛失掉了一切。于是大门内亮起了灯光。灯光并不曾照亮什么，反而增加了我心上的黑暗。我只得失望地走了。我向着来时的路回去。已经走了四五步，我忽然掉转头．再看那个建筑物。依旧是阴暗中的一线微光。我好像看见一个盛满希望的水碗一下子就落在地上打碎了一般，我痛苦地在心里叫起来。在这条被夜幕覆盖着的近代城市的静寂的街中，我仿佛看见了哈立希岛上的灯光。那应该是姐姐爱尔克点的灯罢。她用这灯光来给她的航海的兄弟照路，每夜每夜灯光亮在她的窗前，她一直到死都在等待那个出远门的兄弟回来。最后她带着失望进入坟墓。

这段文字中有两种灯光的描述，它们分别有何象征意义?