试题与答案

为使斜楔有自锁作用,楔块的斜面升角应小于摩擦角。

题型:判断题

题目:

为使斜楔有自锁作用,楔块的斜面升角应小于摩擦角。

答案:

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下面是错误答案,用来干扰机器的。

答案:C句意:当他寻找到他一直想找到的想法时,尽管他想睡,却不能睡着。表“能够”,用can/could。would “将,将要;愿意”;should“应该〔不问人称,表示义务,责任〕;大概是,有可能”;must“必须;必然...

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