In the long run, competitiveness depends on an industry's natural resources, its stock of machinery and equipment, and the skill of its workers in creating goods that people want to buy.
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Increased foreign competition tends to increase profits of domestic import-competing companies.
A. 对
B. 错
后视图是从()投射得到的视图。
A. 后向前
B. 下向上
C. 左向右
D. 前向后
肋板、轮辐、薄壁结构纵向剖切时,不画剖面线,用()将它们与相邻结构分开。
A. 粗实线
B. 细实线
C. 虚线
D. 细点画线
局部剖视图中,剖视与视图的分界线一般用()。
A. 粗实线
B. 细实线
C. 波浪线
D. 细点画线