单项选择题
A. five million B. more than 10,000 C. fewer than 10,000 D. no more than 10,000
A. the whales travel such a long distance B. there are more whales than there used to be C. the whale bodies are too old to study by the time they are found D. the whales are endangered
A. might increase terrorist attacks B. might prevent from terrorist attacks C. might encourage terrorist attacks D. might make terrorists confused