题目

听下面一段独白,回答以下小题。 (1) Who first traveled around the moon before human beings? A . Dogs. B . Monkeys. C . Tortoises. (2) Why were the creatures studied after returning to earth? A . To see how they were affected. B . To examine where they were affected. C . To find out whether they were affected. (3) What caused the main changes in the creatures? A . The space travel. B . A lack of food. C . Loss of appetite. (4) What happened in October 1948? A . Two dogs landed in the Indian Ocean. B . Mice helped people explore space. C . Monkeys were sent into space. 答案: C A B C
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