问题
选择题
设集合A={-1，0，1}，集合B={0，1，2，3}，定义A*B={（x，y）|x∈A∩B，y∈A∪B}，则A*B中元素个数是（ ）
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答案
答案：B
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设集合A={-1，0，1}，集合B={0，1，2，3}，定义A*B={（x，y）|x∈A∩B，y∈A∪B}，则A*B中元素个数是（ ）
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答案：B
| 阅读理解。 | ||||
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| 1. Where is the swimming lesson? | ||||
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| A. Changchun Stadium. B. Great Swimming Pool. C. People Theatre. D. Great Garden. | ||||
| 2. When is the concert? | ||||
[ ] | ||||
| A. On Thursday (18:00-20:00). B. On Saturday (10:00). C. On Saturday (15:00-17:00). D. On Wednesday (10:30-12:00). | ||||
| 3. If you want to ask something about the basketball match, you can call ______. | ||||
[ ] | ||||
| A. 62603941 B. 70504266 C. 58796324 D. 99687241 | ||||
| 4. On Saturday, you can ______. | ||||
[ ] | ||||
| A. watch the basketball match and have the swimming lesson B. see the film Superman and go to the concert C. have the swimming lesson and go to the concert D. watch the basketball match and see the film Superman | ||||
| 5. Two adults and one child will spend ______ seeing the film Superman. | ||||
[ ] | ||||
| A. 87.5 yuan B. 40 yuan C. 8 yuan D. 16 yuan |