按照模具的操作方式分类，注射模具可以分为（）。A、移动式模具 B、固定式模具 C、卧

从标号分别为1，2，3，4，5的5张卡片中，随机抽取1张．下列事件中，必然事件是【   】

A．标号小于6

B．标号大于6

C．标号是奇数

D．标号是3

阅读理解

     根据短文内容, 从短文后的七个选项中选出能填入空白处的最佳选项.选项中有两项为

多余选项.

                                              Early Childhood Education

     Early childhood education is the formal (正规的) teaching and care of young children .It primarily

focuses on learning through playing to encourage the child's different kinds of development.    1   

     Studies with Head Start programs throughout the United States have shown some evidence that there

are quite a few advantages to early childhood education, which can produce significant gains in children's

learning and development. Compared to a child who does not attend pre-school, children completing

their early education programs are found to be better at math and reading skills. They are excited to learn

and have the tools to do so.    2   These children are more competent in their pre-school, kindergarten

and school-age years, and they are usually reported as "friendlier" by parents and the children's peers

(同伴). 

     3  In studies with matched control groups, more students who had early schooling experiences were

employed at the age of 19, fewer were on welfare, and fewer were involved with the criminal activity.

What's more, some studies show that children attending pre-school are more likely to graduate and have

higher education, and be well integrated (综合) as an adult.

    Early childhood education gives most children a jump-start on education for their kindergarten and

primary school years. It is clear that early childhood education can have some great benefits for children.

    4   If early childhood education is less effective, perhaps the best model is finding strategies for

allowing a parent to stay home with his or her child for at least the first two to three years. Also important

is considering a child's own personality.    5    

A. The long-term influence of early education is significant as well.

B. They can benefit greatly from encouragement in their early childhood.

C. Yet its quality must be assessed to see what kind of benefits it actually provides.

D. They are also able to relate to others in a superior way and that improves their social skills.

E. Many experts of education have concerned about what early childhood education means today.

F. Individual differences in children mean that not all children will get equal benefits from early

     childhood education.

G. It consists of activities that serve children in the pre-school years and is designed to improve

     later school performance.

任何情况下不得重负荷开停设备。

类风湿关节炎的特点是

A．多见于青年男性

B．基本病理改变是滑膜炎

C．多累及远端指间关节

D．合并贫血罕见

E．血清类风湿因子一定阳性

股份有限公司设立的子公司不具有企业法人资格。( )