[化] 绣球酸; 二羟┴甲酸; 二羟基┴甲酸

HEALTH REPORT - Folic Acid Reduces Fetal Deaths

HEALTH REPORT - October 23, 2002: Folic Acid Reduces Fetal Deaths By Nancy Steinbach This is the VOA Special English Health Report. A new study in Sweden has confirmed another important health effect

发表于:2019-01-04 / 阅读(56) / 评论(0)

健康与环境

VOA标准英语2013--Folic Acid Supplements Shown To Reduce Risk Of Autism

Folic Acid Supplements Shown To Reduce Risk Of Autism Green, leafy vegetables, fruits and nuts naturally contain folate, a B vitamin that helps the body make healthy new cells. Most pre-natal vitamins include folic acid because it protects against de

发表于:2019-01-14 / 阅读(62) / 评论(0)

VOA标准英语2013年(四月)

2007年VOA标准英语-Folic Acid Linked to Colon Polyps

By Melinda Smith Washington, D.C. 07 June 2007 For years, doctors urged women to take folic acid if they planned to get pregnant. Then researchers discovered the nutrient helped reduce the risk of a heart attack. But now a new study shows folic acid

发表于:2019-01-16 / 阅读(101) / 评论(0)

2007年VOA标准英语（六月）

英语听力文摘 English Digest 90、爱吃甜食

I love to eat sweets--candy, cookies, caramel apples--- everything. But I don't like getting cavities. Is there a way to eat lots of sugar without ruining your teeth? D: Interesting question. First, let's assume that you're not going to cut out sweet

发表于:2019-02-16 / 阅读(41) / 评论(0)

英语听力文摘 English Digest

英语听力文摘 English Digest 177、保护牙齿

Getting Rid Of Cavities 牙痛是继续忍受还是提前做好防护?爱护牙齿，每天的必修课。 M:Sorry,I'm late.I was brushing my teeth. W:Brushing your teeth?Right before 'A Moment Of Science'? Why? M:I'm trying to get rid of a cavity. W

发表于:2019-02-24 / 阅读(59) / 评论(0)

英语听力文摘 English Digest

英语听力文摘 English Digest 405、可以喝的雨水

Acid Water Yal: What are you doing outside, Don? It's about to rain. Don: I'm setting out bottles. Y: I can see that. But why? D: For my new business venture. Bottled rainwater! Y: As in living plastic bottles out in the rain and then selling them as

发表于:2019-03-09 / 阅读(243) / 评论(0)

英语听力文摘 English Digest

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