A.卡不可读
B.卡报废,不能再使用
C.仍能读取入口站点,但当作普通通行卡,不能读取行驶路径
D.当作正常二义性复合卡,读取行驶路径
Using the DD-AA model,analyze the output and balance of payments effects of an import tariff under fixed exchange rates.What would happen if all countries in the world simultaneously tried to improve employment and the balance of payments by imposing tariffs?
A.观察患者呼吸和口唇,有无缺氧的症状
B.观察患者面色和口唇,有无窒息的发生
C.观察患者神志和瞳孔,有无窒息的发生
D.观察患者呼吸和面色,有无窒息的发生