<address id="dft57"><listing id="dft57"><menuitem id="dft57"></menuitem></listing></address>
<thead id="dft57"><var id="dft57"><output id="dft57"></output></var></thead>

    <address id="dft57"><dfn id="dft57"></dfn></address>

    <sub id="dft57"><var id="dft57"><mark id="dft57"></mark></var></sub>

      <sub id="dft57"><delect id="dft57"><output id="dft57"></output></delect></sub>
      <thead id="dft57"><dfn id="dft57"><output id="dft57"></output></dfn></thead>

      <thead id="dft57"><var id="dft57"></var></thead>
      <sub id="dft57"><var id="dft57"><ins id="dft57"></ins></var></sub>

                <sub id="dft57"><var id="dft57"><output id="dft57"></output></var></sub>

                  <sub id="dft57"><var id="dft57"><ins id="dft57"></ins></var></sub>
                    <address id="dft57"></address>
                  <sub id="dft57"><dfn id="dft57"></dfn></sub>
                    <sub id="dft57"><var id="dft57"><output id="dft57"></output></var></sub>

                    當前位置: 首頁 > 英語 > 英語聽力 > 普特英語聽力練習mp3材料

                    普特英語聽力練習mp3材料

                    2015-07-06 14:28:26 英語聽力 來源:http://www.bookcoversale.com 瀏覽:

                    導讀: ★中國招生考試網 http: www chinazhaokao com)英語聽力頻道為大家整理的普特英語聽力練習mp3材料,供大家參考。更多閱讀請查看本站英語 ...

                    ★中國招生考試網 http://www.bookcoversale.com)英語聽力頻道為大家整理的普特英語聽力練習mp3材料,供大家參考。更多閱讀請查看本站英語聽力頻道。

                    The Dangers Of Vitamin Supplements

                    Do you take your vitamins everyday? Be careful. Just as vitamin deficiency can make you sick, so can vitamin toxicity. Indeed, vitamins can be very dangerous if you take them in high quantities.

                    What “A” And “D” Have In Common
                    Though vitamins A and D are the most likely to make you sick if you take too much of them, they aren’t the only vitamins that can be dangerous. All vitamins have the potential to be toxic if you ingest too much of them.

                    Part of the reason why A and D put you at higher risk than Vitamin C and others has to do with the way vitamins are dissolved. Vitamin C dissolves in water. Thus, if you take excess Vitamin C, your body can flush it out through urine. Vitamins A and D, however, dissolve in oils and melted fat.

                    The Consequences
                    So, when you take too much of one of these vitamins, rather than flushing the excess out, the body stores the surplus in fat or in fatty tissues such as the liver and the brain.

                    Accumulation of water in the brain, severe headaches, and birth defects are just three of the problems toxic levels of Vitamin A can cause. If you keep a relatively well-balanced diet, you’ll most likely get the vitamins your body needs without the use of supplements.
                    過量補充維他命的危險

                    你每天都補充維他命么?小心點。就如缺乏維他命會使你生病一樣,維他命中毒也會令你生病。事實上,如果攝入劑量太大,維他命會變得非常危險。

                    維他命A和維他命D的共同點。

                    盡管維他命A和維他命D是最有可能因為服用過量導致生病的,但是它們不是僅有的兩種會造成危險的維他命。如果你服用劑量過高,所有的維他命都有成為毒藥的可能。

                    服用維他命A和維他命D比維他命C以及其他維他命存在更高風險的部分原因在于維他命的分解方式。維他命C溶于水,因此,如果你服用了過量的維他命C,你的身體可以通過尿液將其排出體外。而維他命A和維他命D卻是溶于油和脂肪的。

                    后果

                    因此,如果你過量攝入這幾種維生素的話,身體會將剩余部分存入脂肪或脂肪組織,比如肝臟和大腦,而不會排出體外。

                    腦積水、嚴重的頭痛和先天畸形僅僅是維他命A中毒會造成的眾多疾病中的幾種。如果你保持飲食均衡,那么你也許已經攝取了身體所需的維他命,不需要補充。 相關熱詞搜索:普特英語聽力mp3下載 普特英語聽力網

                    最新推薦英語聽力

                    更多
                    1、“普特英語聽力練習mp3材料”由中國招生考試網網友提供,版權所有,轉載請注明出處。
                    2、歡迎參與中國招生考試網投稿,獲積分獎勵,兌換精美禮品。
                    3、"普特英語聽力練習mp3材料" 地址:http://www.bookcoversale.com/yingyu/yingyutingli/2294.html,復制分享給你身邊的朋友!
                    4、文章來源互聯網,如有侵權,請及時聯系我們,我們將在24小時內處理!
                    大发28 73055o.com | 66876n.com | h4455g.com | www.bst62.com | www.3775p.com | www.34788d.com | 500000572.com | 85698b.com | www.375375d.com | www.0022sun.com | www.508869.com | 1717394.com | www.3399365.com | www.80188y.com | www.848266.com | 188qq000.com | www.yh77701.com | www.00772m.com | www.c5638.com | d2306.com | www.1310909.com | www.79095f.com | www.320667.com | 3404b.cc | www.7770099.com | www.66136.com | 00gg8332.com | 3169l.com | www.yk222d.com | www.c6449.com | 2709x.com | www.888dsy.com | www.87668h.com | 5437e.com | pj12456.com | www.p69096.com | www.375791.com | 85698q.com | www.56655q.com | www.808912.com | qq365u.com | www.858571.com | www.848766.com | 2381e.com | www.99mgm777.com | www.206883.com | vipy15.com | www.47506g.com | www.083019.com | 8036b.com | www.5446vv.com | www.320477.com | 3424d.com | www.07679u.com | 44pp8332.com | k35151.com | www.4521n.com | www.49956e.com | le888g.com | www.o1432.com | 0289t.com | www.655666d.com | www.2221104.com | 7894z.com | www.7111p.com | www.50732w.com | 11683377.com | www.138cpb.com | 96155.com |