问题
单项选择题
曝光时，X线管和探测器不动，而床带动病人动，称其（）
A.增强扫描
B.定位扫描
C.连续扫描
D.动态扫描
E.重叠扫描
答案
参考答案：B
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曝光时，X线管和探测器不动，而床带动病人动，称其（）
A.增强扫描
B.定位扫描
C.连续扫描
D.动态扫描
E.重叠扫描
参考答案：B
| 阅读理解。 Life in Britain Homes and families Many British people live in houses, not apartments. Most houses have gardens. Daily (日常的) life Most office workers start work at about nine in the morning, and finish at about five or six in the afternoon. Most people don't go home for lunch, and they just have a quick meal. School life Children start school at about nine am, and finish at about three thirty pm. Most children have lunch at school. All children go to school when they are four or five years old, and leave when they are sixteen or seventeen. Shops Most shops open at about nine am and close at about six pm. Usually, they don't close for lunch. |
| 1. Many British people live in _____. |
| A. apartments B. parks C. houses D. gardens |
| 2. Most offices start work at about _____ in the morning. |
| A. ten B. nine C. eight D. seven |
| 3. Most office workers and school children don't have lunch _____. |
| A. in the garden B. in the shop C. at home D. at school |
| 4. The children in Britain usually study at school for _____. |
| A. sixteen or seventeen years B. twelve or thirteen years C. four or five years D. four years |
| 5. Can you buy things in the shops at lunchtime? |
| A. No. They close for lunch. B. Yes. But there is no people in the shop. C. No. Shops open at l pm. D. Yes. They don't close for lunch. |