补阳还五汤为活血化瘀之剂，其君药为A．黄芪B．当归尾C．红花D．桃红E．川芎

水是生命之源，也是化学反应中的主角．请回答下列问题：

Ⅰ、氢气燃烧生成液态水热化学方程式是2H₂（g）+O₂（g）═2H₂O（l）△H=-572kJ/mol，

（1）生成物能量总和______（填“大于”、“小于”或“等于”）反应物能量总和．

（2）若2mol氢气完全燃烧生成水蒸气，则放出的热量______572kJ（填“＞”、“＜”或“=”）．

（3）氢气热值为______．

Ⅱ、氢气和氧气反应生成水，将化学能转化为电能，其构造如图1所示：a、b两个电极均由多孔的碳块组成，

（1）a电极反应式是______

（2）b电极反应式是______

Ⅲ、图2表示一个电解池．X、Y都是惰性电极，电解液a是饱和食盐水，同时在两边各滴入几滴酚酞试液．

（1）X极上的电极反应式为______，在X极附近观察到的现象是______．

（2）Y极上的电极反应式为______，检验该电极反应产物的方法是______．

DL/T822-2012《水电厂计算机监控系统试验验收规程》规定：根据被测试回路额定绝缘电压，用兆欧表对装置不直接接地的带电部分和非带电金属部分及外壳之间，以及电气上无联系的各电路之间的绝缘电阻进行测试，测量时间不小于（）。

A.5s；

B.10s；

C.15s。

期货公司的股东、实际控制人或其他关联人有（）情形的，中国证监会及其派出机构可以责令其限期整改。

A．占用期货公司的资产，可能影响期货公司持续经营

B．直接任免期货公司的董事、监事、高级管理人员，或者非法干预期货公司经营管理活动

C．股东未按照出资比例行使表决权

D．报送、提供或者出具的有关报告、材料或者信息等存在虚假、误导或者遗漏

野外漏斗粘度计管口堵塞时可用（）穿通。

A、铁丝

B、螺丝刀

C、细木条

D、都不行

During the last thirty years, the international economy has experienced a basic change. Improvements in the Internet and other communications have had important effects on world markets. Faster methods of transport from one place to another have made the world seem smaller to the businessmen. As a result, the world no longer consists of a number of separate economies under the control of different nations. Instead, the nations have been integrated into a single economy, and the integration is becoming more and more complete every year. For the first time in history, we can truly speak of a global economy.

The most dramatic example of this integration was the oil crisis of 1973 and 1974. It came as a great surprise to the public in the industrial nations to discover that they depended so heavily on imported oil. However, the best evidence for the growing integration is the rapid expansion in the volume of world trade. It went up by about 7% a year during the decade from 1990 to 2000, and in several quasi-industrial (半工业的) countries the growth was even more rapid. As a result. some imported products have become as common as domestic commodity. Some of them are too common for the public to any more realize they are foreign.

Production has also become international, which is manifested by the large corporations stepping across national borders and established branches and subsidiaries in several different countries. As an example, U. S. companies are building automobiles in Canada. Germany, Britain and Japan. In some cases, components of an automobile are produced abroad and shipped to the United States, where it is then finished with the imported parts. When even the United States has the largest number of such corporations, it is not the only. Other multinationals, for instance, are based in Japan, France, Germany, the UK and Italy.

Labor, too, is much more mobile than in the past. Both skilled and unskilled workers can now readily migrate from one country to another. In Europe, for example, there are large numbers of Turkish workers employed in the Germany Economy. Doctors, lawyers, and other professionals are also finding it easier to work in foreign countries. The labor market has become international, and the number of expatriate workers is continuing to grow.

The most convincing indication that we are bordering on a global economy is（）。

A. faster methods of transport

B. the establishment of more multinational corporations

C. the oil crisis of 1973 and 1974

D. the growth of international trade