外圆磨床液压系统因为采用了()换向回路,从而使工作台运动获得了良好的换向性能,提高了换向精度。
A、压力控制制动
B、时间控制制动
C、行程控制制动
D、电气控制制动
参考答案:C
对话排序。
A.—I like songs I can sing along with, too. What's your favorite band?
B.—Oh, look! There's the new Cool Kids CD.
C.—The lions. Their words are interesting.
D.—You are kidding. I think they are awful. I prefer music that has great lyrics and I can sing along with.
E.—Oh, yeah. They are my favorite band. I like music that I can dance to.
F.—The Cool Kids? Do you like them?
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造成医患间交往障碍,病人方面存在的原因最可能是()
A.存在心理障碍
B.过分挑剔或过分冷淡
C.存在人格缺陷
D.情绪不稳,容易激惹,反应敏感
E.以上都是