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Text A The Truth about Fitness Myths 1 Many people want to get and keep fit. Their intention is good, but the methods they use sometimes are not. Over the years, directions like “eat less to lose weight” have been passed around as good advice. But in fact, such fitness methods are unhealthy — and even dangerous. Unfortunately, many people want to lose weight so badly that they will believe any advice — good or bad. Here are five of the most common myths about getting and keeping fit. 2 1. “If I just eat less, I will lose weight.” Many people only focus on the amount of food they take in each day. They don’t pay attention to what they’re eating. So they may be eating less, but they’re not eating healthily. Be sure to eat a good balance of different foods, including vegetables, fruits, meat, milk, and bread or rice. What you eat is just as important as how much you eat. 3 2. “Running is all the exercise I need to lose weight.” You need aerobic exercise to burn off your extra fat. But that alone doesn’t help you get and keep fit. You must also lift weights to build muscles. You need both to get the most effective results. 4 3. “If I build muscles, I will gain weight.” This is true. Muscle is denser than fat, so the same amount weighs more. But muscle also takes up less space. When you replace fat with muscle, you will look thinner and better. 5 4. “The miracle diets on TV will help me lose weight.” These ads promise a miracle solution for losing weight, but usually the products don’t live up to their promises and can even be dangerous. Don’t waste your money on them. 6 5. “ Some fancy exercise machine burns more calories than any other exercise. ” People are often confused about the magical effects of these exercise machines. Don ’ t be fooled by this stuff. Fat burning is directly related to the amount of effort an activity requires. In general, the more difficult it feels, the more calories you burn. No matter how fancy or expensive the equipment is, the harder you work the better it is for your body shaping. 7 What is the best way to get and keep fit? Eat healthily and have a good balance of aerobic and muscle building exercises. Make your healthy lifestyle last for a whole lifetime, not just for a short while.
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【判断题】在多数实验设计中,要特别注意实验对象和实验环境的匹配问题。()
A.
正确
B.
错误
【单选题】在热带雨林中 , 植物有争地盘的习惯 , 它们都是成群成群地盘聚。只有高大的乔木不成群结队 , 彼此孤立 , 用根紧紧握住泥土 , 它们有自己的目标 , 努力朝天空的方向生长 , 直插云霄 , 它们懂得更广阔的天空才是自己生命的舞台。这给我们的人生启示是 ( ) 1 人的价值在于对社会的责任与贡献 2 人既是价值的创造者 , 又是价值的享受者 3 要在个人与社会的统一中实现人生价值 4 实现人生价...
A.
. ①②
B.
. ①③
C.
. ②④
D.
. ③④
【简答题】下列实验装置中,加入固体物质前,所有实验装置中U型管a、b两端液面面均保持水平,加入固体物质后,U型管中a、b两端液面仍然保持水平的是
【简答题】检验NaHCO和NaCO的热稳定性,通常的做法是分别将其加热,并将其所产生的气体通往澄清的石灰水中,观察石灰水是否变浑浊,下面是某老师对NaHCO和NaCO的热稳定性实验的创新设计: 如图所示,在一小试管内盛装NaHCO固体,并将导管插入澄清石灰水A中,在具支试管中盛装NaCO固体,并将支管导管插入澄清石灰水B中,然后加热,结果发现,A中溶液变浑浊,而B中溶液无变化。 结合上述材料,简要回答问题:...
【简答题】Secretary: Mr.Smith, . Mr.Smith: Who is it? Secretary: . Mr.Smith: Tell her . Secretary:She says . Mr.Smith:All right. . A: It’s your wife. B: Put her through. C: there is a call for you. D: I’ll call...
【单选题】狭义上的fMRI是指
A.
DWI
B.
DTI
C.
BLOD
D.
PWI
【简答题】如图是米勒的实验装置,米勒在实验中: ①将装置反复消毒和冲洗; ②将装置内的空气抽出来; ③在B烧瓶和U形管C内加入水,并将烧瓶B内的水煮沸; ④向A处注入某些气体; ⑤用钨电极在D内火花放电8天8夜. 经过冷却后,产物沉淀在C中.请据图分析以下问题: (1)B、C内的液体相当于______. (2)向A处注入的气体是模拟______成分. (3)D内两电极通电是模拟______. (4)冷凝管使...
【单选题】关于DTI定量分析参数FA的描述哪项是正确的
A.
指水分子各向同性成分占整个扩散张量的比例
B.
脑白质中的 FA 值和髓鞘的完整性、纤维的致密性、平行性呈正相关
C.
它的值越小,表示各项异性越大
D.
不依赖于某个扩散方向的改变而变化
【单选题】No.7实验中,数据正确,但DTI板后HW线没有连接,故障现象是什么( )
A.
配有数据的中继状态指示灯快闪,没配数据的常亮
B.
运行灯快闪
C.
四路中继状态指示灯常亮
D.
配有数据的中继状态指示灯常亮
【简答题】下图是米勒的实验装置,米勒在实验中, ①将装置反复消毒和冲洗; ②将装置内的空气抽出来; ③在B烧瓶和U形管C内加入水,并将烧瓶B内的水煮沸; ④向A处注入某些气体; ⑤用钨电极在D内火花放电8天8夜;经过冷却后,产物沉淀在C中。 请据图分析以下问题: (1)B、C内的液体相当于___________。 (2)向A处注入的气体是模拟____________成分。 (3)D内两电极通电是模拟____...
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