. But today they’re often man-made.On the day, people throw colored powders (粉末) at each other... flowers. But today they’re often man-made.Along with the colors, people also throw water balloons ……

using the new products.Secondly, avoid man made foods. Eat lots and lots of fruit, salads, vegetables... off dead surface skin) more than once or twice a month. The outside layer of the skin is a protector ……

outdoors. Half naked, he and another friend spent a *sweltering afternoon on a man-made beach by Donghu Lake. Their bodies were all tanned and they felt solar-charged. A few days later, however, their skin ……

.A. On human fingers.B. On animal skin.B. On animal skin.C. On man-made fingers.C. On man-made fingers.D. On plastic skin.D. On plastic skin.3. How did the thin paper perform in the tests?3. How did the thin ……

the scientists do their tests?A. On human fingers.A. On human fingers.B. On animal skin.B. On animal skin.C. On man-made fingers.C. On man-made fingers.D. On plastic skin.D. On plastic skin.3. What ……

concerts said his skin “glows in the dark”. Excited dancers were horrified to see his pale skin radiating in the dark when he climbed on up stage. The 50-year-old pop star is secretly fighting skin ……

with different thicknesses – from 30 to 220 micrometers – on man-made fingers made from ballistic gel (弹道凝胶). Made with animal protein (动物蛋白), ballistic gel has the toughness (韧性) of human skin.  ……

thicknesses from 30 to 220 micrometers. They tested them on man-made fingers made from ballistic gel (弹道... to 220 micrometers. They tested them on man-made fingers made from ballistic gel (弹道凝胶). This gel ……

they’re often man-made.As well as Indians, people from many other countries including Bangladesh (孟加... flowers. But today they’re often man-made.Along with the colors, people also throw water balloons ……

Man-made spider silk is useful in many fields.  RIKEN  Inspired by ... related human-made products are useful in many fields, such as the medical field.Man-made spider ……

. How to make the new e-skin yourself.C. How scientists made new and improved e-skin.D. What makes.... How to make the new e-skin yourself.C. How scientists made new and improved e-skin.D. What makes ……

and man-made ones.4. According to Urban, the material ______.A. could be of great use in places where... used as skin for robots 命题者： 王俊英（北京） ……

Frogs never drink. They absorb water from their surroundings through their skin. ……

Fros don't drink water with their mouths. They "drink" water through their skin（皮肤）. ……

If you eat too many carrots, your skin may turn orange. ……