单词:
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A: Something's wrong with my computer. B: What's the problem? A: My computer won't turn on. B: Did you see if all the connections are right? A: I'm not sure I understand what you mean. B: The connections between your CPU and your outlet. A: Is that w
发表于:2018-11-30 / 阅读(124) / 评论(0)
英语情景对话-日常生活
2 What are the two speakers doing? [A] Walking down a hill [B] Climbing stairs [C] Discussing a trip
发表于:2018-12-30 / 阅读(60) / 评论(0)
听听测测
3 Where are the two speakers? [A] In a restaurant [B] On a farm [C] At the man's home
发表于:2018-12-30 / 阅读(59) / 评论(0)
听听测测
The early bird gets the worm, and may avoid skin cancer. Because a new mouse study suggests that for humans, tanning in the mornings may be less likely to permanently damage in DNA and cause skin cancer. A mouses levels of the DNA repair protein XPA
发表于:2019-01-08 / 阅读(53) / 评论(0)
Scientific American(十一)月