置的次序要根据管线的性质及其埋设深度来确定。可燃、易燃的和损坏时对房屋基础及地下室有危害的管道，其埋设位置宜离建筑物远一些。
参考答案：对
根据句意填写所缺单词完成短文。
Jim is (1) ______ England. He is a new student in Xu Fei's school. He's
fourteen (2) ______ old. He can (3) ______English, but he (4) ______ speak
Chinese.
Xu Fei (5) ______ speak Chinese and English. So Xu Fei can teach(教) Jim
to learn (6) ______ . Xu Fei(7) ______ swim. Jim can't, either(也). But Jim's
father (8) ______ . Jim's father is a factory (9) ______ . And Xu Fei's father is
a worker, (10) ______ .
下列属于科学精神主要内涵的是（）
A.理性精神
B.分析精神
C.开放精神
D.民主精神
