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英语情景对话-Using a Copier(3)

A: May I help you? B: I need to copy some pages in my book. A: The copier is right over there, in the corner. B: Do I need to pay to use it? A: You have to pay to use the copier. B: How much do you charge? A: You need to pay ten cents for every copy.

发表于:2018-12-02 / 阅读(64) / 评论(0)

英语情景对话-图书馆

英语情景对话-Using a Copier(2)

A: What can I do for you? B: I would like to use the copy machine. A: The machine is over there. B: Do I have to pay to use the machine? A: Yes, you will have to pay to use it. B: How much? A: It costs ten cents a copy. B: Am I limited to a certain n

发表于:2018-12-02 / 阅读(83) / 评论(0)

英语情景对话-图书馆

英语情景对话-Using a Copier(1)

A: How may I help you today? B: I need to make some copies. A: The copier is right over there. B: Does it cost to use it? A: We do charge to use the machine. B: How much does it cost? A: We charge ten cents a copy. B: How many copies am I allowed to

发表于:2018-12-02 / 阅读(63) / 评论(0)

英语情景对话-图书馆

谷歌称人工智能对乳腺癌检测准确率达99%

Google: AI Found Breast Cancer with 99 Percent Accuracy Google says it is deeply involved in developing artificial intelligence, or AI, to help doctors identify and treat disease. The company previously announced successful tests of machine learning

发表于:2019-01-03 / 阅读(69) / 评论(0)

2018年VOA慢速英语(十)月

VOA慢速英语2018 人工智能可以帮助医生更好地做决策吗?

Can Artificial Intelligence Make Doctors Better? Artificial intelligence (AI) technology may soon be a useful tool for doctors. It may help them better understand and treat diseases like breast cancer in ways that were never before possible. 人工智能

发表于:2019-01-08 / 阅读(40) / 评论(0)

2018年VOA慢速英语(十二)月

60秒科学:Beating Heart Tissue from Stem Cells

Beating Heart Tissue from Stem Cells In a study in the journal Science, researchers explain how they used mouse embryonic stem cells and microchip technology to create heart muscle tissue that actually beats. Cynthia Graber reports One of the goals o

发表于:2019-01-30 / 阅读(83) / 评论(0)

60秒科学

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approximation in the mean