严禁（）进入施工现场

在“探究小车速度随时间变化的规律”的实验中，用打点计时器在纸带上打点以记录小车的运动情况，在这一实验中，某同学操作了以下实验步骤：

A．拉住纸带，将小车移至靠近打点计时器处，放开纸带，再接通电源

B．将打点计时器固定在平板上，并接好电路

C．把一条绳拴在小车上，细绳跨过定滑轮，下面吊着适当重的钩码

D．取下纸带

E．将纸带固定在小车尾部，并穿过打点计时器的限位孔

（1）其中错误或遗漏的步骤有：

①______________________________________；

②______________________________________。

（2）将以上步骤完善后按合理的顺序填写在下面横线上。__________

互联网视频行业中拼杀了多年的一对冤家劲敌优酷和土豆，如今却发生180度大转弯，成了一家人。两公司宣布，将以100%换股的方式合并成立新公司。

（1）优酷土豆的合并体现了市场经济的什么基本特征和交易原则。

____________________________________________________________________________________________________________________

（2）选择生产要素的一个内容简要说明两公司的合并，是如何影响其自身的市场竞争力的。

____________________________________________________________________________________________________________________

56-57 为套题. 某合资寿险公司在中国经营十余载以来，价值低的产品基本不卖，保单内含价值很高，公司优秀的代理人鲜有被‘挖角’的，2006 总保费同比成长 27％。

上述情况表明，该公司在银保渠道的经营策略最可能是（）。

A．做大规模

B．等待时机

C．主打储蓄型寿险产品

D．为银行柜台人员开设“精英班”

焊机型号AX1--500中的A表示（），X表示（），1表示（），500表示（）。

Solving a problem can be broken down into several steps. First, the problem must be identified correctly. Psychologists refer (1) this step as problem representation. For many problems, figuring (2) which information is relevant and (3) is extraneous can be difficult and can interfere (4) arriving at a good solution. Clearly, before a problem can be solved, it must be obvious (5) the problem is, however, this is not as easy (6) it might seem. One obstacle to efficient problem representation is functional fixedness, that is, allowing preconceived notions and even prejudices (7) color the facts. Most people tend (8) see objects and events in certain fixed ways, and by being inflexible in viewing the problem, they may be unable to notice the tools (9) the solution. Once the problem is identified accurately, (10) , the second step consists (11) considering the alternatives for a solution. A common way to evaluate alternatives is to write them (12) and then make a list (13) advantages and disadvantages for each solution. Here again, people may be limited by prior experiences. Often people adopt mental sets (14) lead them to the same problem-solving strategies that were successful for problems (15) the past. Although that can be helpful most (16) the time, sometimes a new situation requires a different strategy. (17) that case, the mental set must be abandoned, (18) new alternatives must be explored.
After the alternatives have been compared, a strategy must be selected (19) among them. One way to avoid becoming mired in the options is (20) try the best option with a view to abandoning it for another (21) the results are unfavorable. This attitude allows many people to move on expeditiously (22) the next step—action. The strategy selected must be implemented and tested. If it solves the problem, no further action is necessary, but if (23) , then the cycle begins again, starting (24) problem identification. By continuing to review the problem (25) repeat the problem-solving steps, the solution can be improved upon and refined.