改革创新主要地包括：（） ["理论创新","制度创新","科技创新","文化创新"]
23.int z=5； 24. 25. public void stuff1（int x） { 26. assert （x> 0）； 27. switch（x） { 28. case 2： x= 3； 29. default： assert false； } } 30. 31. private void stuff2（int y） { assert （y < 0）； } 32. 33. private void stuff3（） { assert （stuff4O）； } 34. 35. private boolean stuff4（） { z = 6； return false； } Which is true？（） [" All of the assert statements are used appropriately."," Only the assert statement on line 31 is used appropriately."," The assert statements on lines 29 and 31 are used appropriately."," The assert statements on lines 26 and 29 are used appropriately."," The assert statements on lines 29 and 33 are used appropriately."," The assert statements on lines 29， 31， and 33 are used appropriately."," The assert statements on lines 26， 29， and 31 are used appropriately."]
当温度有较大的变化时，湿热空气遇到冷金属会引起金属表面出现（），使锈蚀加快。 ["冰块","清霜","水蒸气","凝露"]
幸福心理学理论及其相关研究对于提高职场员工（）具有十分现实的意义 ["工作幸福感","工作成就感","工作业绩","工作效率"]
人类文化发展过程中呈现出的某种外部状态和联系是（） ["文化现象","文化事象","文化思潮","文化产品"]
简述幼儿节奏感发展特征。
