带有绿色标志的通道适用于携运物品在数量上和价值上都超过免税限额的旅客。 ( )
参考答案：错
–You’re coughing badly, Martin. Why not give up smoking?
--Give up smoking? Easier said than done, Amy. Once you _________ the habit of smoking, it is very had for you to _________.
A．keep up; break it away
B．take up; drop it out
C．pick up; get rid of it
D．build up; do away with it
华北板块的形成和演化阶段
