单词:
单词: 相关文章
This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? February 28th is International Sword Swallowers Awareness Day, according to practitioner Dan Meyer, who recently demonstrated the technique at the AAAS meeting in Chic
1. In Jerusalem, Israeli Prime Minister Ariel Sharon remains in a coma following emergency surgery Saturday morning to remove about 20 inches of his large intestine . He was rushed into surgery after
全身症状 发热 fever 潮热 hot flushes 乏力 easy fatigability 怕冷 sensation of chill 神经质 hervousness 头晕 vertigo 头痛 headache 心慌 palpitation 恶心 nausea 呕吐 emesis;vomiting 腹泻 diarrhea 腰痛 lumbago 麦氏点 Mc
A new flexible smartphone design could change the way users interact with their devices. ReFlex, developed by researchers at Queen's University, uses 'bend sensors' to control app interactions, and simulates physical forces through detailed vibration
Pre-Listening Vocabulary involuntary: occurs without ones control (e.g. a reflex) contagious: spreads from one person to another empathy: the understanding or acknowledgment of another persons feelings phenomenon: an observance in nature (often causi