提交一级变更申请，提交的时限是（）
A.提前五个工作日
B.提前十个工作日
C.提前十二个工作日
D.提前十五个工作日
参考答案：B
. I feel the thing that’s exciting to me about this work is finding ways to do something in the space of an evening ________ people can sit through to deal with large concerns.
A．when
B．that
C．while
D．how
简述传递高程测量的注意事项
