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【判断题】
静滑动摩擦系数的正切值等于摩擦角。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】企业对有经验的销售人员再次培训的原因包括以下所有,除了:
A.
产品更新
B.
重组区域
C.
加强现有的行为
D.
新的大环境
E.
以上都不是--企业很少需要重新培训有经验的销售人员
【简答题】The English often go out with an umbrella or a raincoat. Why？ 36 the weather In Britain often changes quickly. Spring can be rainy or windy, but the weather is 37 warmer and you can hope more sunny da...
【简答题】Why the father often blames his children for not being able to entertain themselves?
【单选题】心壁
A.
从内向外分为心内膜、心内膜下层、心肌层和心外膜四层
B.
心肌层是心壁中最薄的
C.
心外膜是脏胸膜的一部分
D.
心内膜在房室口和动脉口折叠形成心的瓣膜
E.
心房肌和心室肌是相连续的
【单选题】The second sentence of the first paragraph '...he could not think why the dawn seemed different, rent from any other' means that______.
A.
he felt the dawn of that day different
B.
he didn't feel the dawn of that day different
C.
he was sad that day
D.
he wanted to find a wife that day
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