题目内容
该患者饮食中的饱和脂肪酸应
查看答案
搜索结果不匹配？点我反馈
更多问题
阅读材料，回答题。
The Drink Your Body Needs Most
1. Our bodies are estimated to be about 60% to 70% water.Blood is mostly water and our muscles, lungs, and brain all contain a lot of water.Water is needed to regulate body temperature and to provide the means for nutrients (滋养物 ) to travel to all our organs.Water also transports oxygen to our cells, removes waste, and protects our joints and organs.
2. We lose water through urination (排尿) , respiration (呼吸) , and by sweating.If you are very active,you lose more water than if you do not take much exercise, Symptoms of mild dehydration (脱水 ) include chronic pains in joints and muscles, lower back pain, headaches, and constipation (便秘) . A strong smell to your urine, along with a yellow color indicates that you are not getting enough water. Thirst is all obvious sign of dehydration and in fact, you need water long before you feel thirsty.
3.A good rule of thumb (好的做法 ) is to take your body weight in pounds and divide that number in half.That gives you the number of ounces (盎司 ) of water per day that you need.For example, if you weigh 160 pounds, you should drink at least 80 ounces of water per day,If you exercise you should drink another 8 ounces glass of water for every 20 minutes you are active. If you drink coffee or alcohol, you should add at least an equal amount of water.When you are traveling on an airplane, it is good to have 8 ounces of water for every hour you are on board the plane.
4. It may be difficult to drink enough water on a busy day. Be sure you have water handy at all times by keeping a bottle for water with you when you are working, traveling, or exercising.If you get bored with plain water, add a bit of lemon for a touch of flavor.There are some brands of flavored water available, but some of them have sugar or artificial sweeteners that you don&39;t need.
Paragraph 1__________. 查看材料
下列哪组食物含钠量最高，应限制食用
食物中应该限制的元素是
阅读材料，回答题。
When We Are Asleep
Everyone dreams, but some people never recall their dreams, or do so very rarely. Other people always wake up with vivid recollections (记忆 ) of their dreams, though they forget them very quickly. In an average night of eight hours&39;sleep, an average adult will dream for around one hundred minutes, probably having three to five dreams, each lasting from ten to thirty minutes.
Scientists can detect when someone is having a dream by using an instrument which measures the electrical waves in the brain. During dreaming, these waves move more quickly. Breathing and pulse rate also increase, and there are rapid eye movements under the lids, just as though the dreamer were really looking at moving objects. These signs of dreaming have been detected in all mammals (哺乳动物) studied, including dogs, monkeys, cats, and elephants, and also some birds and reptiles (爬行动物) .This period of sleep is called the "D" state for around 50% of their sleep; the period reduces to around 25% by the age of 10.
Dreams take the form. of stories, but they may be strange and with incidents not connected, which make little sense. Dreams are seldom without people in them and they are usually about people we know. One estimate says that two-thirds of the "cast" of our dream dramas are friends and relations. Vision seems an essential part of dreams, except for people blind from birth. Sound and touch senses are also often aroused, but smell and taste are not frequently involved. In "normal" dreams, the dreamer may be taking part, or be only an observer. But he or she cannot control what happens in the dream.
However, the dreamer does have control over one type of dream. This type of dream is called a "lucid"(清醒的) dream. Not everyone is a lucid dreamer. Some people are occasional lucid dreamers. Others can dream lucidly more or less all the time. In a lucid dream, the dreamer knows that he is dreaming.
Some people dream but cannot remember their dreams. 查看材料
微信支付 
支付宝支付