How many kinds of supporting materials are mentioned in this lecture?
A: One.
B: Two.
C: Three.
D: Four.
A: One.
B: Two.
C: Three.
D: Four.
举一反三
- How many kinds of travel books are mentioned in the passage A: Two. B: Three. C: Four. D: Five.
- How many tables are there in the Premium Deluxe? A: One. B: Two. C: Three. D: Four.
- How many major tennis championships are there A: Four. B: Three. C: Two. D: One.
- How many novels had he finished（） A: One. B: Two. C: Three. D: Four.
- How many types of claims were mentioned? A: Five. B: Two. C: Three. D: Four.