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单项选择题

头文件名可以是系统文件，也可以是用户指定，其后缀不一定都是“.h”。 （   ）
A、正确
B、错误

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单项选择题
表征沥青感温性的指标是（）
A.针入度指数
B.软化点
C.针入度
D.加热质量变化
单项选择题
钢筋混凝土梁的截面最小尺寸为280mm，配置钢筋的直径为20mm，钢筋中心距离为60mm，则选用的粗集料最大粒径为（）mm。
A.25mm
B.35mm
C.30mm
D.20mm
单项选择题
Eleanor Roosevelt was the wife of America′s 32nd president,Franklin Roosevelt.She helped her husband in?many ways during his long（21）life.She also became one of the most（22）women in America.She fought for?equal rights for all people.
Eleanor was born in New York City in 1884.Her family had great wealth.But Eleanor did not have a happy（23）.Her parents died when she was very young.She was raised by her grandmother.Eleanor（24）that as a?child,her greatest happiness came from helping others.
tn the early 1900s,many people were worried about the problems of（25）people who came to America in（26）of a better life.Eleanor could not（27）how people lived in such poor conditions while she and some others?had so much（28）.
After she finished school,Eleanor began（29）children to read and write in one of the poorest areas of New?York City.She also looked into（30）where workers were said to be badly（31）.She saw little children of four?and five years old working until they（32）to the floor.She became involved（参与）with other women who（33）the same ideas about improving social conditions.
Franklin Roosevelt began（34）Eleanor when he was in New York.They got（35）in 1905.In the next eleven?years,they had six children.The Roosevelts moved to Washington D.C.in 1913.
第（28）题选
A.wealth
B.knowledge
C.courage
D.strength
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