【单选题】In 1901, H.G. Wells, an English writer, wrote a book describing a trip to the moon. When the explorers landed on the moon, they discovered that the moon was full of underground cities. They expressed ...
【单选题】When Synthia, a human-made cell, was created in 2010, invoked a global debate on ethics related to synthetic biology. Opponents criticized the work as destroying people's basic beliefs about _________...
【简答题】When the cracked pot apologized, the water bearer _______. A) had pity on it B) burst out in anger C) expressed great concern D) seemed somewhat indifferent