What is the measure of the angle that is supplementary to a 40° angle?
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In the figure below, line t is parallel to line u, and line v is perpendicular to line u.
In the figure below, line x is parallel to line y. What is the measure of angle α?
局域网在网络拓扑上主要采用了环型、星型和【 】结构。
有人认为出国留学是个人发展的最佳选择;
2.也有人坚持在国内也能实现自已的理想;
3. 我的看法。
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