埋地的铸铁管坐标的允许偏差为( )mm。
A.30B.40C.50D.100
参考答案:D
— ____________ is your new English teacher?
— The man under the tree, he is with Miss Gao. [ ]
A. Where
B. Which
C. Whose
D. What
如果项目以合同的形式确立,合同就是项目章程。