防止推土机配合打桩过程中靠近桩柱可能被桩柱砸到的消减措施有哪些？
参考答案：设置施工区域警示标识；保持机具与桩柱的安全距离。
The girl said she would buy a gift for her sister with the _____ money.
A．remaining
B．remained
C．leaving
D．left
试述发行推广的目的。
