我国地势西高东低，呈三级阶梯。下列地形区中，位于地势第一级阶梯的是[ ]
A．青藏高原
B．内蒙古高原
C．四川盆地
D．长江中下游平原
答案：A
Which of the following statements is NOT true of the euro
A．Sweden refuses to join the euro framework.
B．Some big countries tailor the euro’s rules to their own benefits.
C．Euro is not a reliable currency in the world market.
D．The euro zone is suffering from a sluggish economy.
简述项目质量规划的工具和技术
