问题
单项选择题
酚妥拉明使血管扩张的原因是
A．直接扩张血管和阻断α受体
B．扩张血管和激动β受体
C．激动β受体
D．阻断α受体
E．直接扩张血管
答案
参考答案：A
解析：酚妥拉明为竞争性。受体阻断药，使血管扩张，血压下降，与阻断α受体和直接松弛血管平滑肌有关。
搜题请搜索小程序“爱下问搜题”
酚妥拉明使血管扩张的原因是
A．直接扩张血管和阻断α受体
B．扩张血管和激动β受体
C．激动β受体
D．阻断α受体
E．直接扩张血管
参考答案：A
解析：酚妥拉明为竞争性。受体阻断药，使血管扩张，血压下降，与阻断α受体和直接松弛血管平滑肌有关。
Co-operation (合作)is always needed when you make a project that the teacher gives you. First, discuss all you would like to do with your classmates. Choose one of the members to write down what you’re talking about. Then, with the ideas you get, list all you want. Everyone shares the duty for the project. You can collect information not only from books but also on the Internet. Making a survey and doing a research are also good ways. After that, all the members put what has been found together. Try to make the project more well-organized. In the end, you can give a report in front of your class to show the results of your hard work. 任务型阅读：根据短文内容，填写下列表格。（10分）
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