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CRH380A统型动车组一级检修受电弓升弓装置气囊裂纹限度为多少?

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机床上电后第一步的操作是什么?

银铜合金接触线与纯铜接触线相比具有导电性能跟好,抗拉伸性能好,价格便宜等优点。

A. 正确
B. 错误

南平市要积极发展老龄事业,建立覆盖城乡的()养老服务网络,不断拓宽养老服务领域。

A. 社区
B. 居家
C. 互助

A team of programmers is reviewing a proposed API for a new utility class.After some discussion, they realize that they can reduce the number of methods in the API without losing any functionality.If they implement the new design, which two principles will they be promoting?()

A. Looser coupling
B. Tighter coupling
C. Lower cohesion
D. Higher cohesion
E. Weaker encapsulation
F. Stronger encapsulatio

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