单词:chain structure (in silicates)
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Topic 003 客人来访 Vistors 利萨是丹尼尔家的远房亲戚,彼此有三年时间没见过面了。她现在是北京大学一年级的学生,利用课余时间去拜访丹尼尔一家。 Listen Read Learn Benjamin: Lisa, I'm so glad to see you. How are you doing? Lisa: Fine. I miss you so much,
By now, most people have heard of bitcoin. Bitcoin is a virtual currency that has had a huge rise in value during 2017. Bitcoin however is just one of many cryptocurrencies. A cryptocurrency is a kind of money that does not exist in the form of bills
This is Scientific Americans 60-Second Science. Im Christopher Intagliata. Got a minute? Imagine climbing diamond mountains, or hiking around the graphite shores of a lake of tar. Sound a little sci-fi? Well a new discovery suggests planets like that
今天我们要学的词是 chain。Chain 除了大家都知道的,有锁链的意思,还有连锁店的意思。The American drug store Walgreens became the first retail store chain to expand its services to include diagnosing and treating patie
COPENHAGEN, Feb. 18 (Xinhua) -- German supermarket chain Lidl in Denmark has found traces of horse meat in a pasta dish, the supermarket annouced late on Monday. A pasta dish called Combino Penne Bolognese from the manufacturer Copack has been found
So how much do we know about what's inside the Earth? Very little. 因此说,我们对地球的内部情况究竟了解多少?很少。 Scientists are generally agreed that the world beneath us is composed of four layers, 科学家们普遍认为,