（）用于石油化工生产企业的装置区、油库的附属码头、给油槽车装卸栈架等。
A.低倍数泡沫灭火系统
B.移动式泡沫灭火系统
C.中倍数泡沫灭火系统
D.固定式泡沫灭火系统
参考答案：D
解析：移动式泡沫灭火系统宜用于：总储量不大于500立方米、单罐容积不大于200立方米且罐壁高度不大于7m的地上非水溶性甲、乙、丙类液体立式储罐； 中倍数泡沫灭火系统，例如：局部应用式中倍数泡沫灭火系统适用于大范围内的局部封闭空间灭火。
| 阅读下面的短文，从短文后各题所给的A、B、C、D四个选项中，选择最佳选项。 | ||||
| The most difficult thing for university student Shaun Rogers is opening the classroom door by himself. Shaun can't do this without 1 because he is only six years old. He's the 2 person ever to study at Rochester University in New York. Shaun began 3 at two and by the age of five he had read many books and was able to finish writing his 4 book. "I love learning", says Shaun. "My hero is the scientist Albert Einstein 5 he never combed (梳理) his hair or wore socks." Shaun's mother first realized that her son was 6 when he kept crying at playschool because he was bored with the children's games. She started teaching him at home 7 finding that local schools were not prepared for children who 8 at Shaun's speed. Now Shaun is studying geography at 9 and using the Internet to finish his high school studies. However, some scientists warn that too much study can stop a child from developing normally. "I don't care how clever the kid is, six-year-olds have to 10 with their friends," says Dr. Brain Wood. Mrs. Rogers disagreed that all her son's time was taken up by school work. "He loves the violin and has many outdoor 11 , such as camping, fishing and swimming, just like 12 boys of his age." | ||||
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