对价值观的理解,错误的是 [ ]
A、价值观是一种社会意识
B、价值观是社会存在的反映
C、价值观随着社会存在的变化而变化
D、价值观是指人对事物的积极意义
答案:D
Yesterday we had a lecture given by a _____ teacher. [ ]
A. well-mannered young school
B. young well-mannered school
C. well-mannered school young
D. school well-mannered young
汽轮机叶片上沉淀物过多,会导致()。
A、汽机振动值加大
B、汽机噪音加大
C、汽机与压缩机难以同步
D、轴承温度过高