Which of the following best reflects the author's attitude toward the future of cloning a
A. Disappointed and surprised.
B. Optimistic and longing for.
C. Pessimistic and deeply worded.
Doubtful and unhappy.
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According to the passage, what does convention mean to Diogenes？
A. It means habits and customs.
B. It means death and poverty.
C. It means superfluities and complexities.
D. It means real and meaningful life.
What is the main idea of the passage？
A. Mammoths can talk with scientists nowadays.
B. Scientists completed mammoth clone last week.
C. Scientists made speculation of cloning mammoths.
D. We should protect mammoths for they will extinct soon.
What does the last sentence in the first paragraph imply？
A. The rich men lost their free life in order to own their possession for ever.
B. The rich men has sold their perishable goods in order to buy some other goods.
C. The rich man lost their freedom because they had become slaves.
D. It is false to sell some possession in order to buy some other things.
The word "defrosting" in the third paragraph most probably means
A. becoming unfrozen
B. analyzing
C. researching
D. discovering
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