【单选题】如图所示,一光滑细杆上端由光滑绞链固定,杆可绕其上端在任意角度的锥面上绕竖直轴OO′作转动。有一小环套在杆的上端处。开始使杆在一个锥面上运动起来,而后小环由静止开始沿杆下滑。在小环下滑过程中,以小环、杆和地球为系统的机械能以及以小环和杆为系统对轴OO'的角动量这两个量中[ ]。【图片】
【单选题】【1-3-2-6】下列各项中,关于编制记账凭证要求的表述不正确的是( )。
B.
作为记账凭证编制依据的原始凭证和有关资料必须经过审核无误
D.
除结账和更正错误的记账凭证外,记账凭证必须附有原始凭证
【简答题】Suppose you are drinking at a bar. Play your role according to the clues given in brackets. Waiter: Good evening, sir. What would you like to drink? You: Well, 1 (问他们有什么啤酒。) Waiter: We have Tsingtao, ...
【简答题】Part IV. Short Answer Questions (20%) Directions: Give brief explanations to the following terms or questions and write your answers on the Answer Sheet as legibly as you can. 1. What is Suzhou fan fa...
【单选题】如图所示,一光滑细杆上端由光滑绞链固定,杆可绕其上端在任意角度的锥面上绕竖直轴OO′作匀角速转动。有一小环套在杆的上端处。开始使杆在一个锥面上运动起来,而后小环由静止开始沿杆下滑。在小环下滑过程中,以小环、杆和地球为系统的机械能以及以小环和杆为系统对轴OO'的角动量这两个量中[ ]。【图片】
【简答题】如图 4.1 所示 , 一光滑细杆上端由光滑铰链固定 , 杆可绕其上端在任意角度的锥面上绕 OO ′ 作匀角速转动.有一小环套在杆的上端处 . 开始使杆在一个锥面上运动起来 , 而后小 环由静止开始沿杆下滑 . 在小球下滑过程中 , 小环、杆和地球组成的系统的机械能以及小 环加杆对 OO ′ 的角动量这两个量中 (A)机械能、角动量都守恒. (B) 机械能守恒、角动量不守恒. (C) 机械能不守恒...
【简答题】Suppose you are drinking at a bar. Play your role according to the clues given in brackets. Waiter: Good evening, sir. What would you like to drink? You: Well, 1 (问他们有什么啤酒。) Waiter: We have Tsingtao, ...
【单选题】在一种速降娱乐项目中,人乘坐在吊篮中,吊篮通过滑轮沿一条倾斜的钢索向下滑行.现有两条彼此平行的钢索,它们的起、终点分别位于同一高度.小红和小明分别乘吊篮从速降的起点由静止开始下滑,在他们下滑的过程中,当吊篮与滑轮达到相对静止状态时,分别拍下一张照片,如图 所示.已知两人运动过程中,空气阻力的影响可以忽略,则 ( ) . 1 小明到达终点用时较短 2 小红到达终点用时较短 3 小明到达终点时速度较大...
【单选题】Which of the following words best describes the tone of this passage?
【单选题】听力原文:W: How did you do in the final exam of Accounting? M: I thought it should have been easy for me, but when half an hour passed, there was nothing on the paper but my name and student number on the...
A.
The man passed the exam.
B.
The man found the exam too difficult.
C.
The man finished the exam in half an hour.
D.
The man forgot to write his name and student number.