五(1)班有a人,比五(2)班多2人,五(2)班有______人.
a-2(人);
故答案为:a-2.
特发性气胸的发生机制是()
A.胸膜下肺大泡破裂
B.机械通气
C.胸腔内负压增加
D.肺组织坏死,造成细支气管和胸膜腔相通
E.创伤
ThesubtitleoftheINCOTERMS2010rulesformallyrecognizesthattheyareavailableforapplicationtobothinternationalanddomesticsalecontracts.