A.appearance and size are most important for life to survive in the desert
B.a species must be able to multiply quickly in order to survive
C.for some species one life cycle in a year is enough to survive the desert drought
D.some species develop a unique life pattern to survive in extremely harsh conditions
单选题 | He had been completely exhausted but felt considerably ________ after a meal and a rest. | 查看答案 |
单选题 | The bus that ________ outside the inn would soon take the visitors downtown. | 查看答案 |
单选题 | After the age of 40, ________. | 查看答案 |
单选题 | It was only after some progress ________ in the use and development of electric current that men began to realize the importance and possibilities of magnetism. | 查看答案 |
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单选题 | With an eighty-hour week and little enjoyment, life must have been very ________ for the nineteenth-century factory workers. | 查看答案 |
单选题 | The fire must have ________ after the staff had gone home. | 查看答案 |
单选题 | The weatherman broadcasts the ________ in temperature twice a day. | 查看答案 |
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单选题 | Which of the following can be identified as a source of “pleasure” for women? | 查看答案 |
单选题 | In no circumstances can more work be got out of a machine than ________. | 查看答案 |
单选题 | He obviously displays a great ________ for some of your poems. | 查看答案 |
单选题 | Last year, these ships transported a total of 83.34 million tons of cargo, a 4.4 per cent increase ________ the previous year. | 查看答案 |
单选题 | At last she left her house and got to the airport, only ________ the plane flying away. | 查看答案 |
单选题 | It can be inferred from the passage that writing a research paper gives one chances ________. | 查看答案 |
单选题 | According to the third paragraph, it can be seen that older Americans ________. | 查看答案 |
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单选题 | From Heilman’s remark, we can see that ________. | 查看答案 |
单选题 | The winning team loudly ________ its victory. | 查看答案 |