肾-天癸-冲任-胞宫生殖轴的主导是 A．胞宫 B．冲任 C．肾气 D．天癸 E．以上

如图所示，在一真空区域中，AB、CD是圆O的两条直径，在A、B两点上各放置电　荷量为＋Q和－Q的点电荷，设C、D两点的电场强度分别为E_C、E_D，电势分别为_C、_D，则下列说法正确的（　　）

A、E_C与E_D相同，_C与_D相等

B、E_C与E_D相同，_C与_D不相等

C、E_C与E_D不相同，_C与_D相等

D、E_C与E_D不相同，_C与_D不相等

阅读理解

      Children start out as natural scientists, eager to look into the world around them. Helping them enjoy

science can be easy; there's no need for a lot of scientific terms or expensive lab equipment. You only

have to share your children's curiosity. Firstly, listen to their questions. I once visited a classroom of

seven-year-olds to talk about science as a job. The children asked me "textbook questions" about

schooling, salary and whether I liked my job. When I finished answering, we sat facing one another in

silence. Finally I said, "Now that we've finished with your lists, do you have questions of your own about

science?"?

     After a long pause, a boy raised his hand, "Have you ever seen a grasshopper (蚱蜢) eat? When I try eating leaves like that, I get a stomachache. Why?"?

     This began a set of questions that lasted nearly two hours. ?

      Secondly, give them time to think. Studies over the past 30 years have shown that, after asking a

question, adults typically wait only one second or less for an answer, no time for a child to think. When

adults increase their "wait time" to three seconds or more, children give more logical, complete and

creative answers.

      Thirdly, watch your language. Once you have a child involved in a science discussion, don't jump in

with "That's right" or "Very good". These words work well when it comes to encouraging good behavior.

     But in talking about science, quick praise can signal that discussion is over. Instead, keep things going by saying, "That's interesting" or "I'd never thought of it that way before", or coming up with more 

questions or ideas.?

      Never push a child to "Think". It doesn't make sense, children are always thinking, without your

telling them to. What's more, this can turn a conversation into a performance. The child will try to find

the answer you want, in as few words as possible, so that he will be a smaller target for your

disagreement.?

     Lastly, show; don't tell. Real-life impressions of nature are far more impressive than any lesson

children can learn from a book or a television program. Let children look at their fingertips through a

magnifying glass(放大镜), and they'll understand why you want them to wash before dinner. Rather than saying that water evaporates (蒸发), set a pot of water to boil and let them watch the water level drop.

1. According to the passage, children are natural scientists, and to raise their interest, the most

    important  thing for adults to do is _______.

A. to share the children's curiosity

B. to let them see the world around?

C. to explain difficult phrases about science

D. to supply the children with lab equipment?

2. In the last sentence of the first paragraph, the word "lists" could best be replaced by _______.

A. any questions       

B. questions from textbooks?

C. any problems  

D. any number of questions?

3. According to the passage, children can answer questions in a more logical, complete and creative

   way if adults _______.

A. wait at least for three seconds after a question.  

B. wait for one or two seconds after a question.?

C. tell them to answer the next day.

D. ask them to answer quickly.

4. The author mentions all of the following techniques for adults to share with their children's curiosity

    except that adults should _______.

A. encourage their children to ask questions of their own?

B. offer their children chances to see things for themselves?

C. be patient enough when their children answer questions?

D. tell their children stories instead of reciting facts?

下面哪种食品是有毒食品，不宜食用（）

A.发芽的土豆

B.未彻底煮熟的四季豆

C.发霉的花生

D.以上都是

某书店拟开发一套书店管理系统。该系统是一个单机系统。主要实现图书及图书所属类别的增删、当前订单管理与历史订单管理、销量统计、客户管理、图书销售等功能。书店最高领导是经理，下设人事部、计财部、销售部和储运部。对于书店新进的图书，通过添加可以实现顾客的浏览与购买。不能销售出去的图书，则删除。管理人员可以增加图书类别。每本图书属于不同的类别。相反，当某个类别的图书都不能带来赢利，需要删除的时候，不需要一本一本的删除，将整个类别删除。顾客通过浏览选择了图书时，就会下订单。此功能就可以使业务人员很好的通过订单管理实现对顾客的服务。通过订单管理，可以标记发货时间，准时配送图书，记录详细信息；而对已发货的订单，管理员就需要标记，做相应的处理；对于已发货的订单、删除的订单，进行历史订单管理，书店通过此功能做出分析和决策（什么时间发货量大，什么图书最热销与滞销）。为了帮助商家更好的决策，销量统计功能可以即时地总结出某段时间图书的销量情况，使书店即时做出反应，调整图书的存放位置。客户管理用来存储客户信息。通过客户管理建立具有吸引力的营销（标记信誉良好的用户，增大折扣机制）。图书销售就是顾客浏览商品、选择商品、结账完成购物的地方。设有快速查询、高级查询、图书分类查询等查询方式，真正做到“简洁，高效，流畅”的购物环境。

在书店管理系统程序调试的过程中，程序员发现求日平均销售额时，程序运行结果与手工计算结果不同。程序员逐步查找求日平均销售额过程语句流，寻找错误结果出现的原因。程序员采用的排错方法是（）。

A、跟踪法

B、归纳法

C、演绎法

D、试探法

盐生植物