quEstions 14 to 17 ArE BAsED on thE Following pAssAgE.At thE EnD oF thE pAssAgE, you will BE givEn 20 sEConDs to AnswEr thE quEstions.
now listEn to thE pAssAgE.
thE spEAkEr mAinly DisCussEs ______.A．thE growth oF thE printing inDustry
B．thE history oF pApEr-mAking
C．thE usE oF pApEr in thE 19th CEntury
D．thE Composition oF wooD FiBEr