问题
单项选择题
酚妥拉明的药理作用不包括
A．舒张血管，降低外周阻力
B．直接影响血管平滑肌及阻断。受体
C．心收缩力增强，心率加快
D．有拟胆碱作用，组胺样作用
E．抑制神经末稍NA释放
答案
参考答案：E
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酚妥拉明的药理作用不包括
A．舒张血管，降低外周阻力
B．直接影响血管平滑肌及阻断。受体
C．心收缩力增强，心率加快
D．有拟胆碱作用，组胺样作用
E．抑制神经末稍NA释放
参考答案：E
阅读下面短文，根据所读内容在文后第76至第85小题的空格里填上适当的单词。 注意：每空1个单词。 When it comes to the world of computers, green computing is becoming popular. But what is green computing? The term “green computing” is one that is being used in many different markets and areas all over the world in today’s global technology. However, many computer users aren’t sure what it means. Green computing is actually quite easy to explain and to do—it is basically learning to use computer resources more efficiently to protect the environment as well as saving energy. The main goal is to reduce the use of energy and materials that harm the environment. Green computing started as early as 1992, when the EPA created Energy Star program that improved computing equipment and technologies. Because of this program sleep pattern appeared and many computer users began to adopt this policy to help save energy when they were not using their computers. In October of 2006, Energy Star made the requirements stricter for computers. Because of these new requirements, there are over 20 states that have now set up a special recycling program for old computers to help with green computing. Many of today’s IT systems are beginning to rely on both people and hardware to help push their computer systems toward a more green computing system to help both the company and others. This is a hard balance to achieve, as it has to satisfy users. Many companies are learning the best ways that they call go greener when it comes to their computing and also help their business in the process. While many home computer users may not be quite as familiar with green computing as large firms, this term is starting to become more mainstream all around the world.
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