A、肺癌：闷痛
B、胸膜炎：尖锐刺痛或撕裂痛
C、心绞痛：压榨性并窒息感
D、夹层动脉瘤：牵扯痛
E、带状疱疹：刀割样或灼痛，剧烈
I’mworriedabouttheappearanceofthefloor.Ineedto_____it.
A、clean
B、fix
C、wax
D、oven
Hegaveusagood____ofhisexperience.
A、demonstration
B、frequency
C、descripton
D、instruction
A、家长主义模型
B、企业模型
C、契约模型
D、信托模型
E、合作模型
PartIVTranslation
Itwouldhavebeendifficultforthemtoavoidtheconclusionthatthehorseandmulepopulationwoulddeclinerapidly.(PassageFour)