下列各项中，按FOB成交，卖方需负责的是（ ）
A．装船时货物跌落码头
B．未能租船订舱
C．装船后至启航发生损失
D．运输途中发生风险
参考答案：A
一类高层建筑裙房与耐火等级为三、四级的丙类厂（库）房建筑之间的防火间距应不小于()
A.25m
B.20m
C.15m
D.10m
-Would you mind carrying the box for me?
-_____________. [ ]
A. That's right.
B. What a pity !
C. Not at all.
D. Thank you.
