25（）

单项选择题In the last paragraph, the writer again refers to the fire as a living creature by saying that it （）

A. can be blown around by the wind
B. dwarfs man’s best efforts
C. heats the air above it
D. may still win the struggle

单项选择题Which type of printing is more convenient based on the passage（）

A. Movable type.
B. Baked clay.
C. Block printing.
D. Wet ink.