破拆类器材包括()种。
A.17.0
B.18.0
C.19.0
D.20.0
参考答案:D
He's one of those people with a very _______ imagination --- every time he hears a noise he's convinced it's someone breaking in.
A.adequate
B.relevant
C.abundant
D.vivid
请简述曹操大兴师要报杀父之仇的经过。