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在CAXA制造工程师中改变观察方向,通过按F7会显示( )。
a. XZ平面
b. XY平面
c. 轴测
d. YZ平面
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国家开放大学
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佳题速递:
天坛的屋顶形式是( )。
中国建筑史
下列哪些药物经代谢后产生有活性的代谢产物
药物化学
A: What is your boyfriend like? B: He is tall and handsome.
大学英语(专)1
8-13 二阶RLC串联电路,当R 时,电路为振荡放电;当R= 时,电路发生等幅振荡。
电路理论
5[翻译题] Tom is a biologist(生物学家). when he started working in a chemical factory, he thought he was protecting his children. he wanted to offer the best things in their life, such as a big house, a boat and wonderful vocation. I think he must love his family very much, and did a lot for it. even in the most difficult time, he never give up his family and children. this kind of person is no doubt admired by others. he loved chemistry(化学) and lost a lot of things because of it. but he never gives up, and always work hard . It gives me a deep impressing that when he knew the four little leopard (豹)were dead of environment pollution, he believed that chemistry can bring benefit to the humans
英语
下列说法错误的()
语言学概论
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