问题
单项选择题 A1/A2型题
导致X线照片运动模糊的因素，可暂时控制的是（）
A.呼吸
B.心脏搏动
C.胃肠蠕动
D.痉挛
E.血流
答案
参考答案：A
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导致X线照片运动模糊的因素，可暂时控制的是（）
A.呼吸
B.心脏搏动
C.胃肠蠕动
D.痉挛
E.血流
参考答案：A
| 阅读下面短文，根据短文内容，补全表格中所缺的信息。 | ||||||||
| Let's go hiking! Most people enjoy hiking. Hiking is not only a healthy but also a relaxing activity. The reason why people go hiking is different from person to person. Here are some of the most popular reasons for people to hike: First of all, hiking is very good exercise which will improve people's body. It's good exercise that doesn't hurt your body. Secondly, hiking is simple and cheap. All you need to do is to wear a pair of hiking boots and your smile to start. Finally, hiking is the best way to get away from your everyday life. You could hike alone or go with your friends. After hiking, you will have a clear mind and then return to work with confidence. So why not plan your hiking route right away? | ||||||||
The reasons why hiking is 1______.
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