单项选择题
单项选择题 加快转变经济发展方式,促进国民经济又好又快发展,关键在于实现“三个转变”。关于“三个转变”的说法错误的是()。
单项选择题 A.Americans will not need to work in the future.B.There are fewer babies in America now.C.Young couples now prefer to remain childless.D.There is more than one factor contributing to changes in life-styles in America today.
单项选择题 A.恶心、呕吐、便秘 B.耐受性和依赖性 C.血压升高 D.呼吸肌麻痹 E.呼吸急促治疗剂量吗啡即可引起的不良反应是A. B. C. D. E.