不可使用任何滤镜操作的图像颜色模式的是：（） A.RGB模式 B.CMYK模式 C

一个数的平方是4，则这个数是（    ）．

从方框内选出适当的选项完成对话，有两项是多余的。

A: Hello! Mr. Wang. 小题1:______  What are you doing?

B: I’m looking for a book called A Tale of Two Cities.

A: 小题2:_____________

B: That’s right. I’m thinking about asking some students to act a play about the book.

A: 小题3:___________ But I think that’s a bit hard for our students.

B: Well. 小题4:_____________ By the way, I hope you can be the hero of it.

A: Really? I’ll try my best.

B: OK. 小题5:_____________ Then I’ll give you one week to get ready.

10. We were anxious _____ news of your safe arrival.

A．to

B．of

C．for

D．At

无限花序和有限花序

读某地区地质剖面图，完成小题。

该地区地质历史上内力作用的先后顺序为（）

①水平挤压运动

②水平扩张运动

③岩浆活动

④变质作用

A.①②③④

B.②①④③

C.①③④②

D.②④③①