【单选题】下列物质的有关事实与电化学腐蚀无关的是
C.
埋在潮湿疏松土壤里的铁管比干燥致密不透气的土壤里的铁管更易被腐蚀
【判断题】尺寸标注合理是指所注尺寸既要满足设计使用要求,又能符合工艺要求。便于零件的加工和检验
【单选题】马克思列宁主义同中国实际相结合的第一次飞跃的理论成果( )
【单选题】尺寸( )是指标注的尺寸能满足设计要求,又便于加工和测量。
【简答题】单元测试、集成测试和确认测试各自主要目标是什么?它们之间有什么不同?相互有什么关系?
【单选题】According to Sapir-Whorf Hypothesis, which of the following is NOT true?
A.
Different languages offer people different ways of expressing the world around.
B.
Language filters people's perception and the way they categorize experiences.
C.
Language patterns determine or influence people's thinking and behaviour.
D.
Language structure people habitually use shows no influence on people's behaviour.
【单选题】下列几种关于氰化物中毒的病理变化描述中,正确的是( )
【简答题】Listen to the two girls by the window. What language ___________? A . did they speak B . were they speaking C . are they speaking D . have they been speaking
【单选题】零件图中的尺寸标注,下列说法正确的是();
A.
尺寸标注合理是指即要满足设计使用要求,也要符合工艺要求,方便加工和检验;
B.
孔或轴的中心轴线不可见,不能作为尺寸标注的起点或基准;
D.
越程槽标注为“2X1”,是指槽深直径方向为2mm,槽宽为1mm;