党员个人可以决定重大问题吗？

     Pushing children too hard is a really big social problem that seems to be getting worse. Now we

have 6montholds in music classes and swimming classes. Parents fear that if other children are attending

these classes, they will be holding their own children back if they do not enroll, too.

     The other extreme, simply taking a_laissezfaire_approach and letting children do-or refuse to

do-whatever they want, is not the answer either, of course.

     Dr. Taylor emphasizes that parents need to push their children based on what is best for children, not

what is best for themselves. If children understand that an activity is in their best interests,then they will

accept it, he finds.

     Dr. Taylor and other family experts remain pessimistic about the possibilities for widespread social

change. "The force of our popular culture, driven by money and superficial(表面上的)values, cannot

be resisted," he says. But change can take place at a "microlevel", in families and schools.

     When change does occur, the rewards can benefit everyone in the family. One mother supporting this

new approach toward parenting mentions the advantages her family experienced after her children cut

back on activities. "The biggest thing is that since we have done this, we are rested," she says. "Not only

are our kids rested, because they're not in a ton of stuff, but my husband and I are rested, because we're

not driving them everywhere. We weren't living in the moment when we were always busy. We were

living by the schedule. The return on our investment of spending time together has been enormous."

1. One of the reasons why parents push children so hard is that they ________.

A. believe in early development in children

B. are too busy to take care of their children

C. don't want their children to lag behind

D. want to repeat what their parents did to them

2. The phrase "a laissezfaire approach" (in Paragraph 2)most probably refers to ________.

A. denying them what they need

B. controlling children in a flexible way

C. developing a keen interest in children

D. letting children do whatever they want

3. The best way to encourage children to work hard is ________.

A. to make them believe it's in their best interests

B. to consider the matter from parents' standpoint

C. to emphasize the importance of hard work from time to time

D. to make it interesting and enjoyable to them

4. What the author doesn't approve of in the essay is ________.

A. achieving a balance between pushing children too hard and leaving them alone

B. going from one extreme of pushing children too hard to the other of leaving them alone

C. involving children in activities that will probably contribute to their development

D. enrolling them in classes that are best for children

5. The new approach toward parenting mentioned in the passage most likely refers to ________.

A. relieving children's hard work and unnecessary activities

B. resisting the superficial values of pop culture

C. reducing more activities off their school schedule

D. spending more time with their children

如图，套在竖直光滑细杆上的环A由跨过定滑轮的不可伸长的轻绳与重物B相连．由于B的质量较大，故在释放B后，A将沿杆上升，则：（　　）

A．在环A上升至与定滑轮的连线处于水平位置前v_A一直大于v_B

B．在环A上升至与定滑轮的连线处于水平位置前v_A一直小于v_B

C．当A环上升至与定滑轮的连线处于水平位置且速度不等于零时，B的速度最大

D．当A环上升至与定滑轮的连线处于水平位置且速度不等于零时，B的速度最小，但不为零

简述农业保险合同的概念及其特点。

根据《突发事件应对法》的规定，各单位对本单位可能发生的突发事件和采取安全防范措施的情况，应当按照规定及时向( )报告。

A．所在地公安部门
B．所在地安全生产监督管理部门和有关部门
C．所在地人民政府或者人民政府有关部门
D．所在地环境保护部

某双线螺纹，导程为4mm，螺杆转4周，则直线运动的位移量是（）。

A.4

B.8

C.16

D.32