at China plans to send

, in the Aitken Basin, was chosen as the landing site for Chang'e-4. The region is believed to have great scientific research potential.Th▓e transmission channel is limited, and the landscape rugged, so the mission will be more complicated than Chang'e-3, China's first soft landing on the Moon in 2013, said Liu Tongjie, deputy di▓rector of the Lunar Exploration and Space Program Center of CNSA.As the rela▓y satellite will be sent to the Earth-Moon Lagrange Point L2 about 450,000 kilometers from the Earth, where a gravitational equilibrium c▓an be maintained, it could stay in stable orbit and ope▓rate for a long time."We will make efforts to ena▓ble the relay satellite to work as long as possi▓ble to serve other probes, including those from other countries," said Ye Peijian, a leading Chinese aerospace expert ▓and consultant to China's lunar exploration program.The Lunar Exploration and Space Program Center of the CNSA has invited the public to write down their hopes for lunar and space explora▓tion, and those hopes and the names of participants will be carried by the relay satel

ken Basin of the

lite into deep space. More than 100,000 peo▓ple have taken part, according to the center.Please scan the QR Code to follow us on InstagramPlease sc▓an the QR Code to follow us on WechatBEIJING, Fe▓b. 24 -- For people whose eyes are bigger than their stomachs, a big meal with lots of different tastes usually satisfies. But some foods do not go with others. When the mix is wrong, people will not be able to assimilate the nutrients in the food. Sometimes there are ris▓ks of more serious side effects. Crabs and persimmons are ▓a well-known example. When the two are eaten togeth▓er, they cause diarrhea. Li Hongyan, a s▓enior nutritionist from Shanghai Tongmai Food Co Ltd, suggests that when mixing different foods,

people have to look out for those that might resul▓t in bad reactions. She offers some tips for Shanghai Daily readers. Category 1: Soybean and milk pro▓ducts Bean curd and spinach When bean curd and spinach are▓ eaten at the same time, they affect absorption of calcium and may lead to blockages in▓ the abdomen. Spinach contains oxalic acid, which ca▓n react with the calcium in bean curd in the▓ intestines and form insoluble precipitates of calcium oxalate. The foods taken together affe▓ct the absorption of calcium. Bean curd and green onion T▓he combination of bean curd and green onions may affect ▓the absorption of calcium. Bean curd contains plenty of nutrition like protein and calcium. B▓ut green onions contain a great deal of oxalic acid. When calcium meets oxalic acid, the calcium oxalate they form destroys calcium. If one eats be

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