让夏日食品远离健康忧患SUMMER has arrived. With the hot weather, food goes bad quickly.You may have had..., scientists from Germany developed a plastic film (薄膜) that changes color to show when food has gone bad ……

WHAT fruit in your fridge goes bad first…? Usually the bananas; one day they are yellow and firm... they keep for longer. But to find out how the spray works you first need to know why fruit goes bad. Like ……

of the past thanks to new technology: a mobile phone and a tracking unit that is strapped on the back of the animal. When the pet goes missing its movements are followed via an electronic map displayed ……

. When the seed goes bad, the smell becomes stronger. This keeps animals from eating the seed.In fact... (层). The outside layer has butyric acid (丁酸). This makes it smelly. When the seed goes bad, the smell ……

让夏日食品远离健康忧患SUMMER is here. But with the hot weather, food goes bad quickly. It could be very useful...). The film changes color to show when food has gone bad.The film finds biogenic amines (生物 ……

.But this plan goes wrong. When the three chicks come out of the eggs, they call the fox Mommy...法国暖心动画电影《大坏狐狸的故事》。The big bad fox dreams of being a bad guy on a farm. But no one is afraid of him ……

responsibilities. But even if that goes well, she will be more careful when she picks travel partners... tried to understand,” said Feng. “Plus, it wasn’t all bad. For example, when she wiped the tables ……

abandons (抛弃) him. Homeless, Astro Boy goes on a trip to find his true place in the world. He meets Cora...的) President Stone wants to take over Metro City. Astro Boy has to return and fight the bad guys ……

were messages sent by gods, and people thought these messages were warning signs for bad behavior. But today science and technology give us a better understanding of comets.Last week, comet Ison ……

the decline of humanities is necessarily a bad thing. US writer and economist Ed Conard, for example... that it is innovations in science and technology that the US needs to boost its economy and retain its ……

When people think devices without smart technology will become outdated? ……

When Zhong Sheng concluded his thesis with a final period, he took a deep breath and was awash... major at Dongguan University of Technology later this month. “I feel nervous. After all, the defense ……

them a bath (洗澡) from time to time. You might find that dogs smell (闻起来) bad when we bathe them...Dogs smell when we bathe them. TUCHONGDogs smell when we bathe them. TUCHONG为什么狗狗洗澡的时候很臭？为什 ……

threatLittle Smart, some of its users say, has a fairly bad reception.However, Li Ping, a 23-year-old teacher in Hangzhou, was delighted when he became a pioneer user of the service in 1999. But, the "honeymoon ……

  按错了按钮会怎样？按错了按钮会怎样？A boy is on an airplane. He goes into the restroom. Then, the plane hits a patch of rough air (一阵颠簸气流). The airplane shakes (摇晃)! When the shaking is over, the boy comes ……