对需要现场勘测的合同,勘测工程师首先要及时与客户沟通,确定客户是否具备勘测条件。必要时要向客户发()申请表
参考答案:现场服务
We should keep it in mind that beneath our feet ______ that our life depends on for food and clothing.
A.lies the earth
B.lying the earth
C.does the earth lie
D.the earth is lying
(2006)已知图示斜面的倾角为θ,若要保持物块A静止,则物块与斜面之间的摩擦因数f所应满足的条件为:()
A.tanF≤θ
B.tanf>θ
C.tanθ≤f
D.tanθ>f