研究的正当性是指研究者选择的研究问题是否具有( )。
A.重要性
B.可能性
C.必要性
D.可读性
E.突破性
参考答案:C
Change the forms of the following sentences. 句型转换。
1. Li Ming is putting on his clothes now.(对画线部分进行提问)
2. I stay at home two days a week.(对画线部分进行提问)
3. I usually eat porridge for breakfast.(对画线部分进行提问)
4. washes, before, he, his, breakfast, hands.(连词成句)
5. different, Saturday, are, and, Sunday.(连词成句)
《中小学校建筑设计规范》规定:绿化用地中学每学生不应小于()
A.0.5m2
B.1m2
C.1.5m2
D.2.0m2
E.2.5m2