Millions of people travel by plane every single day. If you're planning on being one of them soon, you might not be looking forward to the （1） feeling air travel often leaves you with. Besides the airport crowds and stress, travelling at a high altitude海拔 has real effects on the body. Although the pressure of the cabin机舱 is （2） to prevent altitude sickness, you could still （3） sleepiness or a headache. The lower oxygen氧气 pressure found in an aircraft飞机 cabin is （4）to that at 6,000-8,000 feet of altitude. A drop in oxygen pressure can cause headaches in certain （5） To help prevent headaches, drink plenty of water, and avoid alcohol and coffee. Airplane food might not really be as tasteless as you （6） thought. The air you breathe in a plane dries out your mouth and nose, which can affect your sense of taste. Perception of sweet and salty foods dropped by almost 30 percent in a simulation模拟 of air travel. However, you can make your taste buds 味蕾active again by drinking water. A dry mouth may（7）taste sensitivity, but taste is restored恢复 by drinking fluids. Although in-flight infections感染（8） in dry environments like airplanes, your risk of getting sick from an airplane is actually low because of the air（9） used. Unless you're sitting next to someone who is coughing or sneezing, you shouldn't worry too much about getting sick. However, bacteria have been shown to live on cabin surfaces, so wash your hands（10） A) adjusted I) particular B) channels J) primarily C) equivalent K) reduce D) experience L) renovated E) filters M) smooth F) frequently N) thrive G) in dividuals H) originally 0) unpleasant