从所用资源的能量形式分析，下列各种发电方式与“水利发电”相同的是（ ）
A：火力发电
B：地热发电
C：核能发电
D：风力发电
A. Red is my favourite colour.
B. What time does the party begin?
C. That sounds interesting.
D. It's on 5th January.
E. Can you come to my birthday party, Linda?
Peter: ____
Linda: Sure. When's your birthday?
Linda: ____
Peter: It begins at half past six in the evening.
Linda: OK.
Peter: Please bring some red things to the party. It's a "red party". ____Linda: A “red party”？ ____ I can't wait.
设集合M=x|x=kπ2+π4,k∈Z,N=x|x=kπ±π4,k∈Z，则M、N的关系是（ ）
