问题
单项选择题
眼眶内异物不如玻璃体内异物显示清楚,可采用以下哪种方法寻找,鉴别异物( )
A．窗试验法
B．彩阶显示法
C．降低灵敏度法
D．以上方法都可用
E．以上方法都不可用
答案
参考答案：D
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眼眶内异物不如玻璃体内异物显示清楚,可采用以下哪种方法寻找,鉴别异物( )
A．窗试验法
B．彩阶显示法
C．降低灵敏度法
D．以上方法都可用
E．以上方法都不可用
参考答案：D
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| Teenagers live very busy lives now and often forget to think about their diets and exercise. In fact, healthy 1 along with regular exercise is the only way to keep fit. During your teenage years, giving your body the energy that it needs is 2 . Teenage 3 need about 2,200 calories (千卡热量) a day while boys need a bit 4 -doctors suggest 2,800 for teenage boys. 50% of your calories should come 5 rice, bread, vegetables and fruit. You 6 need to drink a lot of water, 6 to 8 glasses a day. Drinking enough water will improve your skin and give you healthy hair. Exercise is something that can help you. 7 , it can make you look good, feel good and be healthy. Experts (专家) suggest that teenagers should spend at least 30 minutes exercising, five times a week. When you exercise, your body produces something that makes you feel 8 . It can even help you 9 better at night and let you pay more attention 10 you study! | ||||
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