下列()属于可竞争措施项目费用。
A.建筑物超高费
B.垂直运输费
C.模板工程费
D.脚手架费
参考答案:A, B, C, D
―The river runs clear.
―We all appreciate the importance the local government has_______ the environmental protection.
A.attached to
B.left for
C.responded to
D.learnt from
均匀调节式埋弧自动焊机弧长发生变化后,恢复的时间要比等速送丝式焊机来得()
A.长
B.短
C.几乎一样