你可能感兴趣的试题
They are heavenly bodies similar in nature. There are more asteroids than meteoroids. They are heavenly bodies different in composition. Asteroids are more mysterious than meteoroids.
read to read reading having read
the relationship between climate change and civilization. the history of global climate change. the interaction between nature and human society. the impact of the spread of agriculture:
the; a /; the the; / /; a
was constructed in the nineteenth century. will be finished in three years' time. follows some of the original lines. took three years longer than expected to complete.
thought that they knew a great deal and could solve most problems of science were afraid of facing up to the realities of scientific research knew that they were ignorant and wanted to know more about nature did more harm than good in promoting man's understanding of nature
The bee, a social animal. Navigational techniques of bees. Testing the awareness of bees. The bee hive, nature's candy shop.
Sex Ratio Changes in Human Evolution. Ways of Continuing Man's Evolution. The Evolutionary Future of Nature. Human Evolution Going Nowhere.
Wales is the richest of the three. Scotland is the largest of the three. Sometimes England is used instead of Britain. Britain is the only name of the largest island of British Isles.
discover the characteristic of nuclear process discover the nature of uranium ore save the life of uranium miners store nuclear wastes in underwater tanks
湘公网安备 43130202000226号