下列关于能量转化的实例，你认为说法正确的是（  ）

下列关于城市区位因素的正确的叙述是(     )
①影响城市区位的主要因素是在不断变化的 ②有些因素如交通、宗教等对现代城市区位的影响已经很弱 ③有些因素如自然资源、军事等始终对城市区位影响很大 ④日本的筑波城的区位主导因素为科学技术

下列各句中，划线的词语运用正确的一项是(   )

1）Where did you go?

2）What did you do there?

3）What did you see or hear there?

4）Who played with you?

5）Did you have a good time during the summer holiday?

6）How was your summer holiday?

My summer holiday