二硼化镁

太阳科普第6期

The composition of the sun lies in this bar code. 这个条码说明了太阳的组成 All the thin lines are caused by tiny amounts of complex elements 这些细细的线条，都是微量复杂元素造成的 metals like iron and magnesium. 好比说

发表于:2018-12-07 / 阅读(88) / 评论(0)

太阳科普

英文原版对话1000个:1167 Camboida Road Trip Part 1

Todd: So Julia, I was looking at your website and I noticed that you did a bike trip in Cambodia. Julia: Yes, that's right. I joined an organization called Pepi and we did a ride from Siem Reap to Vietnam, Ho Chi Minh City. Todd: Wow, that's pretty c

发表于:2018-12-25 / 阅读(34) / 评论(0)

原版英语对话1000个

【英语趣味课堂】柬埔寨公路旅行-Camboida Road Trip Part 1

发表于:2018-12-29 / 阅读(67) / 评论(0)

英语趣味课堂

草莓的作用

Dieting isnt always easy, particularly if you have a sweet tooth. But by adding strawberries to your diet, you can enjoy a range of guilt-free dishes, drinks and snacks any time of day. Best of all, strawberries are low in calories, high in fiber, fa

发表于:2019-01-08 / 阅读(50) / 评论(0)

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在购物清单上加上这些健康食品吧

Avocado 牛油果 In addition to its flavorful taste and rich and creamy texture, this fruit (yep, it is indeed a fruit!) is loaded with antioxidants and can help you lower your bad cholesterol. Whether you eat it in a salad, spread on toast, or even

发表于:2019-02-01 / 阅读(61) / 评论(0)

实用英语

有效的睡眠疗法

Sleep well, sleep better If sleep has plunged to the bottom of your to-do list, you're not alone. Although the National Sleep Foundation recommends getting seven to nine hours of sleep a night, the average American logs only six hours and 40 minutes.

发表于:2019-02-07 / 阅读(48) / 评论(0)

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abnormal spin

activity on arrow

analogue-digital conversion