【单选题】Which of the following is NOT mentioned in the passage?
A.
Da Vinci once stayed in France.
B.
“Mona Lisa”is kept in the Louvre
C.
The Louvre was once a church as well as a palace
D.
The Louvre is a place of interest to different people from all over the world.
【单选题】Once enviromental damage ______, it takes many years for the system to recover.
【单选题】The boy is _______ interested in enviromental issues.
【简答题】要实现气缸中间定位,画出两种可行方案的气路图,其优缺点是什么?
【单选题】( )是美国心理学家弗雷维尔于 1976 年首次提出的一个概念。指个体对自身认知过程的了解和控制,也可称为检验、调整和评价个体思维的能力。
【简答题】简单来说 ,影响淘宝搜索的核心因素包括标题关键词与商品信息相关性、【】、【】、【】、【】、【】、【】、【】。