异丙肾上腺素治疗哮喘的常见不良反应是（） A.腹泻 B.中枢兴奋 C.直立性低血压
题型：单项选择题
问题：
异丙肾上腺素治疗哮喘的常见不良反应是（）
A.腹泻
B.中枢兴奋
C.直立性低血压
D.心动过速
E.脑血管意外
题型：单项选择题
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| We can see walls everywhere in the world . But the Great Wall of China is the 1 of all. The Chinese call it "the Ten-thousand-li Great Wall". It is more than 6,000 kilometers. It is 4-5 meters 2 . In most places, five  horses or ten 3 can walk side by side.When you visit the Great Wall, you can't 4 wondering how the Chinese were able to build such a great wall thousands of years ago. 5 any modern machines, it was really very difficult to build it. They 6 to do all the work by hand. It 7 millions of men hundreds of years to build it. The Great Wall has a history of over two thousand years. The king began to build the first parts of it around two thousand seven hundred years 8 . Then Qin Shihuang had all the walls joined up. He thought that could keep the 9 out of the country. Today the Great Wall has become a place of interest. Not only the Chinese people 10 people from all over the world come to visit it. | ||||
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