【单选题】Which of the following is NOT true?
A.
Thomas Jefferson enriched the collection of the Library.
B.
The Library of Congress is in Washington D. C.
C.
The Library of Congress has books on all subjects from the very beginning.
D.
You can ask the experts in the Library of Congress all kinds of questions by phone.
【判断题】换向阀除了可以控制执行元件的运动方向外,还可以控制执行元件的起动和停车。
【单选题】空间任意力系经简化后,得到一个力和一个力偶,这个力的大小和方向 ________ 该力系的主矢。
【判断题】Libra people are good at dealing with the confrontation.
【判断题】Simon partly agrees with the description of Libra.
【简答题】This second volume in the series of Classics of American Librarianship is devoted to library work with children. As stated in the preface to the first volume, on 'Library and School', the papers chose...
【简答题】What's the differience between”cuba libra” and “rum and coke”?
【判断题】在现实生活中很少有完全的自主者或者完全的不自主者,我们只需改进自己某些方面的不足,就可以提升自主学习能力。