【单选题】在Solidworks软件零件特征操作中,旋转特征草图里绘制的构造线是否参与建模?
【判断题】市售的浓盐酸浓度不准确,且易挥发,故不能用作基准物质。
【判断题】枪乌贼的干制品称为墨鱼干,乌贼的干制品称为鱿鱼干。
【单选题】For the study, two types of rice were genetically altered to resist two common insect ___________, which usually require heavy use of pesticides to control.
【判断题】在光栅图形中关闭和打开图像边框的是IMAGE。
【单选题】输入植物种子、种苗及其他繁殖材料的,应当在入境前7日报检。( )
【单选题】输入植物种子、种苗及其他繁殖材料的,应当在入境前7天报检。( )
【判断题】A genetically modified organism (GMO) is any organism whose genetic material has been altered using genetic engineering techniques (i.e., a genetically engineered organism).
【判断题】An American scientist claimed he helped make the world ’ s first genetically modified human beings: twin girls whose DNA he said he altered.