最早提出PPT演示文稿的是以下那位（ ）。
A: Robert Gaskins
B: Robert U
C: Robert bums
D: Robert frost
A: Robert Gaskins
B: Robert U
C: Robert bums
D: Robert frost
举一反三
- --Hello. May I speak to Robert? ---Yes,___________. A: I am Robert Anderson. B: My name is Robert Anderson. C: This is Robert Anderson speaking. D: Robert Anderson is me.
- Robert Bums is a famous romantic (). A: poet B: essayist C: dramatist D: novelist
- In Robert Frost’s “Mending Walls”, wall ...tive meanings of it?
- Robert Frost was an Amencan________． A: essayist B: playwright C: poet D: novelist
- When was Robert Frost born？ A: 1873 B: 1874 C: 1875 D: 1876