在机器人执行搬运任务时，需要要道工件的位置，以及重量。

单项选择题牵伸倍数越大,并合效果越好。 A、正确 B、错误

单项选择题0|show data-onresultcheck= *redo|*.na|hide@*correct|*.na|hide@*reset|*.na|hide >A small group of people stood in the cold wind early Saturday afternoon in front of Bank of America’s downtown Columbia branch, holding signs and trying to deliver a message to passers-by: The bank should not support the continued use of fossil fuels, namely by partially financing the Dakota Access Pipeline.The protesters held signs that promoted clean energy and expressed their anger at the bank in front of its branch for financing a portion of the project. Perry Bigsoldier, who claims Native American tribal heritage, said he hoped people would see them and think about the issue.“Our first mission was to make people aware of this,” he said. “Of course there’s only seven or eight protesters, but quality over quantity. These are dedicated people and that’s what we’re seeing across the nation, dedicated people that are tired of oppression and injustice.”The pipeline has caused a lot of disagreement for months as a Texas-based company has sought to build a portion of it across land in North Dakota that a Native American tribe holds dear. People have protested around the country, and hundreds remain at the site protesting its construction.3. What did the people protest in front of the bank according to the news report?A、The bank’s business in fossil fuels from North Dakota. B、The bank’s support of a Native American organization. C、The bank’s use of unfair terms and conditions. D、The bank’s funding for a construction project.

单项选择题几乎参加什么运动都会对视觉起到缓解保护作用，除了哪些运动？ A、跳水、潜水 B、游泳 C、跑步 D、打羽毛球

判断题若n阶方阵A相似于对角矩阵，则A必有n个线性无关的特征向量。

多项选择题以下属于区块链应用场景的有？（多选题）

单项选择题碰撞理论中方位因子P： A、一定小于1 B、一定大于1 C、可大于1，也可能小于1 D、无法判断

判断题一般配方中，小西饼油脂的使用量比苏打饼干为多。

单项选择题（ ）是学前儿童学习数学的基本方法 A. 讲解演示法 B. 游戏法 C. 操作法 D. 比较法

单项选择题OSI参考模型共( )层，TCP IP协议参考模型共( )层。 A、7 4 B、7 7 C、4 7 D、4 4

单项选择题临床常见的心火引动肝火的病症，属