企业或个人投保财产保险后产生了放松对财物安全管理的思想，如产生物品乱堆乱放，吸烟后随

运输标志通常由一个（）与数字及简单的文字组成。

A.简单几何图形和一些字母

B.复杂几何图形和一些字母

C.简单几何图形和一些符号

D.复杂几何图形和一些拼音

明矾石是制取钾肥和氢氧化铝的重要原料，明矾石的组成和明矾相似，此外还含有氧化铝和少量的氧化铁杂质。具体实验流程如下：

请回答下列问题：

（1）操作l所用到的玻璃仪器的名称是                      。

（2）由溶液3制取氢氧化铝的离子方程式为          。

（3）明矾石焙烧时产生SO₂气体，请你写出能验证SO₂气体具有还原性且实验现象明显的化学方程式                        。

（4）请你写出验证溶液l中有NH₄⁺的实验过程           。

（5）实验室用Fe₂O₃与CO反应来制取单质Fe。

①请你按气流由左到右方向连接下列各装置，顺序为：A→                 。

②检验装置A气密性的方法是                      。

③在点燃B处的酒精灯前，应进行的操作是                    。

④装置C的作用是                         。

工余安健环意外事件分析后，将分析结果应用在哪些方面？

Questions

·Read the following passage and answer questions.
1. If sustainable competitive advantage depends on work-force skills, American firms have a problem. Human-resource management is not traditionally seen as a central to the competitive survival of the firm of the United States. Skill acquisition is considered an individual responsibility. Labor is simply another factor of production to rent at the lowest possible cost — as much as one buys row materials or equipment.
2. The lack of the importance attached to human-resource management can be seen in the cooperation hierarchy. In an American firm the chief financial officer is almost always second in command. The post of head of human-resource management is usually a specialized job, off at edge of corporate hierarchy. The executive who holds it is never consulted on major strategic decisions and has no chance to move up to Chief Executive Officer. By way of contrast, in Japan the head of human-resource management is central—usually the second most important executive, after the CEO, in the firm’s hierarchy.
3. While American firms often talk about the vast amounts spent on training their work forces, in fact they invest less in the skills of their employees than do either Japanese or German firms. The money they do is also more highly concentrated on professional and managerial employees. And the limited investments on modem training workers are much more narrowly focused on the specific skills necessary to do the next job rather than on the basic background skills that make it possible to absorb new technologies.
4. As a result, problems emerge when new breakthrough technologies arrived. If American workers, for example, take much longer to learn how to operate new flexible manufacturing stations than workers in Germany do (as they do), the effective cost of those stations is lower in Germany than it is in United States. More times is required before equipment is up and running at capacity, and the need for extensive retraining generates costs and creates bottlenecks that limit the speed, with which new equipment can be employed.
5. The result is a slower pace of technological changes. And in the end the skills of the bottom half of the population affect the wages of the top half. If the bottom half cannot effectively staff the processes that have to operated, the management and professional jobs that go with these processes will disappear.

Questions

·For questions, choose the best title for each paragraph from below.
·For each numbered paragraph, mark one letter (A-G) on the Answer Sheet.
·Do not mark any letter twice.
A. The bad effect of poor management on new technologies.
B. The position of human-resource management in corporation hierarchy.
C. The work force — training in American firms.
D. Human-resource management is not important for American firms.
E. How to make American firms become more completive.
F. The importance of worker’s skill.
G. Problems exit in American’s companies.

Paragraph 1: ______

速度小于等于160km/h的客货共线铁路基本建筑限界图中，电力牵引区段的跨线桥在困难条件下的最小高度为（）。

A.6200mm

B.6500mm

C.5700mm

D.5500mm