祝新婚夫妇四字成语.给我些

解题思路：为了使人口数量的增长，同社会经济和资源环境条件相适应，我国政府把计划生育作为一项基本国策．我国计划生育的目的是：减少人口数量，提高人口素质；要求是晚婚、晚育、少生、优生．据此分别解答．

一对25岁生育的夫妇及其子孙均生两个孩子，150年后，人口增加6代；而一对30岁生育的夫妇及其子孙均生两个孩子，150年后，人口增加5代．因此们都是25岁生育与都是30岁生育相比，150年后，人口会多增加1代；一对夫妇1代多2人×4万=8万．
如果每对夫妇及其子孙都是25岁生孩子，50年后，那么多两代人，如果都生2个，4万对将多生16万人；如果都生1个，4万对将多生8万人；因此他们都生两个与都生一个相比，50年后，人口总数会多增加10万．从上述推算可以依次看出，晚育、少生是控制人口增长的重要措施．
故答案为：1； 8；10；晚育；少生

点评：
本题考点： 计划生育及其目的和要求；人口增长过快的原因及其影响．

考点点评： 计划生育的内容在考试中经常出现，注意掌握．

解题思路：从性染色体的组成和生殖细胞的产生过程进行分析．

（1）染色体是细胞核中能被碱性染料染成深色的物质，在体细胞中成对存在；染色体主要由蛋白质和DNA组成，其中DNA上携带者遗传信息，是主要的遗传物质．
（2）人的体细胞中有23对染色体，其中有22对常染色体，1对性染色体；男、女体细胞中的性染色体的组成不同；女性的性染色体组成是XX，男性性染色体的组成是XY；从图中可以看出，甲图中的性染色体组成是XX，为女性；乙图中的性染色体组成是XY，为男性．体细胞形成生殖细胞时成对的染色体分开分别进入不同的生殖细胞中，从性染色体分析，男性产生的精子有2种，分别带有X染色体和Y染色体．
（3）该夫妇的遗传图解为：

因此，子女控制耳垂性状的基因可能是Dd或dd．
（4）从性染色体的组成看，男性产生的精子有两种，分别带有X染色体和Y染色体，两种精子的数量相等，与卵细胞相结合的机会均等；女性产生的卵细胞只有1种，带有X染色体；如果带有X染色体的精子与卵细胞结合，受精卵的性染色体组成是XX，发育成女孩；如果带有Y染色体的精子与卵细胞结合，受精卵的性染色体组成是XY，发育成男孩；因此，这对夫妇每胎生女孩的可能性是50%或1/2．
故答案为：
（1）DNA
（2）乙；2
（3）Dd或dd
（4）50%（或1/2）

点评：
本题考点： 人的性别遗传；染色体、DNA和基因的关系．

考点点评： 生男生女取决于哪种类型的精子与卵细胞结合．

看成5个 每个各有2种
A(5,5) A(2,2)A(2,2)A(2,2)A(2,2)A(2,2)=3840

你的作文谈不上跑题,题目就和名字一样只是一个称谓,关键是内容,你的内容或你们作文的主题相差确实是很大,你的作文伞成了主题,而家只是一个配角,不过你的作文写的挺感人的

是不是这一段?
Do you Cristyn take P.D. as your wedded husband, to have and to hold, for better or for worse, for richer or for poorer, in proximity and in distance, in sickness and in health, to love and to cherish, with trust and understanding, with patience and fidelity, as long as you both shall live?
下面是比较完整的一个仪式
The ceremony
Dearly beloved, we are gathered in the presence of God and in the fellowship of this community to join together Cristyn Brown and P.D. Magnus.
Who brings Cristyn to be married to P.D.?
Lloyd + Gwyn: We do.
Lloyd + Gwyn take their seats.
Marriage is a covenant of faith that endures all things, in which husband and wife communicate with one another and trust in one another. Marriage is a covenant of hope, in which husband and wife commit themselves to the work of making a life together, creating a lasting future where the hopes of each are the hopes of the other. Marriage is a covenant of love, in which husband and wife strive to treat one another with understanding and compassion.
Love is patient, love is kind. It does not envy, it does not boast, it is not proud. It is not rude, it is not self-seeking, it is not easily angered, it keeps no record of wrongs. Love does not delight in evil but rejoices with the truth. It always protects, always trusts, always hopes, always perseveres.
Love never fails. But where there are prophecies, they will cease; where there are tongues, they will be stilled; where there is knowledge, it will pass away.
And now these three remain: faith, hope, and love. But the greatest of these is love.
Do you P.D. take Cristyn as your wedded wife, to have and to hold, for better or for worse, for richer or for poorer, in proximity and in distance, in sickness and in health, to love and to cherish, with trust and understanding, with patience and fidelity, as long as you both shall live?
P.D.: I do.
Do you Cristyn take P.D. as your wedded husband, to have and to hold, for better or for worse, for richer or for poorer, in proximity and in distance, in sickness and in health, to love and to cherish, with trust and understanding, with patience and fidelity, as long as you both shall live?
Cristyn: I do.
Have you brought tokens to stand as signs of your love and commitment?
Us: We have.
P.D.: With this ring I thee wed. Cristyn, please wear it as a sign of the depth of our love.
Cristyn: With this ring I thee wed. P.D., please wear it as a sign of our lifelong commitment.
By joining in marriage, Cristyn and P.D. have one life together where before they had lives apart. Just as these two candles burn separately, when brought together they may light a single flame.
Cristyn + P.D. light unity candle.
P.D. and Cristyn, in the sight of God and this community, you have vowed fidelity to one another in holy matrimony and represented these vows with the exchange of rings and the lighting of the candle. I now you pronounce you husband and wife. You may kiss.

像是放假同学的自行车之离学校去度假