问题
多项选择题
国产采煤机的喷雾防尘系统的水压通常不小于和总耗水量不低于（）。
A、1MPa
B、2Mpa
C、200L/min
D、100L/min
E、150L/min
答案
参考答案：A, C
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国产采煤机的喷雾防尘系统的水压通常不小于和总耗水量不低于（）。
A、1MPa
B、2Mpa
C、200L/min
D、100L/min
E、150L/min
参考答案：A, C
| 阅读理解。 |
| Mary is an American girl. She has two brothers, but she has no sisters. Both (两者都) her brothers like playing the guitar. Mary's father likes playing the trumpet. He is a teacher of a trumpet club. Her mother likes playing the piano. She can play it very well. Mary is twelve years old. She will go to China with her parents next week, because her parents find new jobs in China. |
| 1. How many people are there in Mary's family? |
[ ] |
| A. Five. B. Four. C. Six. D. Seven. |
| 2. What does Mary's father like playing? |
[ ] |
| A. The piano. B. The trumpet. C. The drum. D. The violin. |
| 3. Mary's parents and brothers like ______. |
[ ] |
| A. shopping B. music C. China D. trumpet |
| 4. What does Mary's mother like doing? |
[ ] |
| A. She likes playing the guitar. B. She likes playing the violin. C. She likes playing the piano. D. She likes shopping. |
| 5. Who is going to China? |
[ ] |
| A. Mary. B. Mary's brothers. C. Mary's parents. D. Mary and her parents. |