The following traditional costumes of ethnic minorities can best adapt to the plateau environment with large temperature difference and low temperature () A.B.C.D

There are 56 ethnic groups in China, which are widely distributed and relatively concentrated. The plateau with large temperature difference and low temperature in China should be the Qinghai-Tibet Plateau, and the ethnic minorities living in the Qinghai-Tibet Plateau are mainly Tibetans. The basic characteristics of Tibetan clothing are hypertrophy, long sleeves, wide waist and right lapel, which is a linear clothing without cutting. Tibetans wear only one sleeve in Tibetan robes, the left sleeve is empty, and the right sleeve is pulled from the back to the front and draped over the right shoulder.

Tibetans live on the Qinghai-Tibet Plateau with high altitude and large temperature difference between day and night. Even in a day, there are often changes in wind, rain and snow. Tibetans often describe climate change as "four seasons in one mountain, but different days in ten miles". Tibetan robe is made of good material and has strong cold-proof effect. When the temperature rises, you can easily take off a sleeve to adjust the temperature, which is also beneficial to life and travel. Tibetan robe has a big waist. In addition, it is beneficial to labor production. When Tibetans are grazing, working and farming, they need to take off their sleeves when the weather is changeable. It is also convenient to take off their sleeves and tie them around their waist and bend over to work. As a result, they gradually formed a habit that Tibetans usually wear only one sleeve when the temperature is normal. Judging from the above characteristics, it should be Figure B.

Therefore, choose: B.