绿色植物在生物圈中之所以会被称为“生产者”，是因为绿色植物能够进行（　　）

如图在通电螺旋管周围放有bcd三颗小磁针，a是放在螺旋管内部的小磁针，当开关闭合时，小磁针指向正确的是(     )
 

根据对话内容，从方框中选择4个恰当的句子完成对话

a. Well, how about Town Cinema?

b. Hi, Mary. Are you free this evening?

c. I'm sorry to hear that.

d. May I speak to Mary, please?

e. Sure. I'd love to. Where?

Rick: Hello!  ____

Mary: Hello! This is Mary speaking.

Rick:____

Mary: Yes. I have nothing to do.

Rick: Can you go to the movies with me?

Mary:  ____

Rick: Let's go to Movie Palace. It's close to home.

Mary: But it doesn't have comfortable seats.

Rick:  ____ It's the best theatre in town.

Mary: That's agood idea. Let's meet at the front gate of the cinema at eight. OK?

Rick: OK. See you.

Mary: See you.