右手螺旋定则中，拇指所指的方向是（）。A．电流方向 B．磁力线方向 C．电流或磁力线

“五十六个民族，五十六枝花，五十六个兄弟姐妹是一家”。请写出下列相关内容。

（1）最早出使西域、加强西域与内地联系的历史人物                          。 

（2）迁都洛阳，促进民族融合的著名改革是                                        。

（3）“唐蕃和同为一家”中的吐蕃族是今天的                                     。 

（4）元朝时期开始形成的一个新民族是                                                。 

《标准化法》及其实施条例规定，由国务院标准化行政主管部门审批、编号、发布的标准包括（）。

A.通用的技术术语国家标准

B.基本原料、材料国家标准

C.药品、兽药国家标准

D.工程建设国家标准

诊断急性心肌梗死特异性最高的酶是　　　　　　　　　　　　　　　　　

A．血清肌酸激酶同工酶（CK-MB）

B．天门冬氨酸氨基转移酶（AST）

C．丙氨酸氨基转移酶（ALT）

D．乳酸脱氨酶（LDH）

E．碱性磷酸酶（AKP）

“科学把握人对自然的改造活动。自觉珍爱自然，保护生态”适用于处理（）。

A.自我身心关系

B.个人与他人关系

C.个人与社会关系

D.人与自然关系

Being a good parent is harder now than it has ever been before. In pressurised modern lives, demands to be a fulfilled individual, and a good partner and a good worker, take no account of being a good parent. We haven’t left space for the nurturing parents expect to provide and children need. As a result, many parents in the western world just don’t work.

Something will have to change. With luck, people in the future will only have children if they really want them And that should mean that parenthood is seen as a much more positive commitment than it is now, and that parents are socially supported, and admired for doing a good job.

The problem is that in the last generation or so we’ve come to assume that women should be able, and should want, to do everything that by tradition men have done at the same time as pretty well as everything that by tradition women have done. And it’s just not possible. Indeed since adopting a male agenda in life is arguably only another form of submission (男尊女卑), quite a number of highly educated and economically privileged women are now choosing to take career breaks so as to be at home with their children for longer than that insulting 18 weeks*.

The most welcome trend in parenting is that men are participating more and more. Even that is not free of conflict, though. Intellectually, women want men to be equal parents and do their share. But there’s often a contradictory emotional sub-text because children are the last bastion (堡垒) of distaff power (女性的权利) in the family. "I want him to help me but this is my territory and being better at it is one of the few things I’ve got as a female. "

Having children—especially the first child—puts a bigger strain on a couple’s relationship than anything else they ever do. So a future of smaller families and more people choosing not to have children at all could well leave couples closer than they are today; for many, the purpose of being together would be solely to pleasure and support each other-an interesting prospect.

*在英国，妇女的法定产假是18周。

Which is true about the future trend().

A. More parents will choose to stay at home to take care of their children.

B. Families with several children will emerge per and richer.

C. More people will choose not to get married.

D. More couples will choose not to have children.