【单选题】What a pity it is that Bob ______ the habit of smoking at such an early age!A.developed intoB.s
A.
146. What a pity it is that Bob ______ the habit of smoking at such an early age! A.developed into
【单选题】平面机构的虚约束有哪几种情况:1) 被连接件上点的轨迹与机构上连接点重合 2 )两个构件组成多个移动副,各移动副导路互相平行 3 )两个构件组成多个回转副,各回转副的轴线重合 4 )机构中对运动不起限制作用的对称部分
【单选题】A fallacy in which someone tries to win support for an argument or idea by exploiting his opponent ’ s feelings of pity or guilt. It is a specific kind of appeal to emotion.
【单选题】在机构中,与其他约束相重复而不起限制运动作用的约束为__________ 。
【单选题】平面机构的虚约束有哪几种情况() 1)被连接件上点的轨迹与机构上连接点重合 2)两个构件组成多个移动副,各移动副导路互相平行 3)两个构件组成多个回转副,各回转副的轴线重合 4)机构中对运动不起限制作用的对称部分
【单选题】Dear Manager, I am happy that the TV set we bought last week has arrived on time. But it is a great pity that we find there is something wrong with it ... 5. What is the letter?
A.
A . An adjustment letter
C.
C . A complaint letter
【判断题】在机构中,有些运动副引入的约束与其它运动副引入的约束相重复,因而这 种约束形式上存在但实际上对机构的运动并不起独立限制作用,这叫虚约束
【简答题】机构中的约束往往有些是重复的。这些重复的约束对构件间的相对运动不起独立的限制作用,称之为虚约束[填空(1)]。
【简答题】He doesn’t _____ into self-pity because of his job as a trashman; instead, he feels proud of it as he thinks it is an essential task.