在定轴轮系中,如果始末两轮的转向既不相同又不相反,则传动比就无符号意义。( )
参考答案:对
The project ________ by the end of 2012,will expand the city's telephone network to cover
2,000,000 users.[ ]
A. being accomplished
B. to be accomplished
C. accomplished
D. having been accomplished
业主指定的分包商,在开发中受到非自身原因造成损害时,他应向______提交索赔报告。
A.业主
B.总承包商
C.监理工程师
D.业主或监理工程师