已知工程测量中图根水准测量的总测站数为35，则允许限差为（）。
A.±45mm
B.±59mm
C.±71mm
D.±35mm
参考答案：C
－The temple looks very old.
－You are right. It’s said that it_______more than 300 years ago.
A．took apart
B．came into being
C．went through
D．built up
雇主应当在收到承包商的任何请求后的( )天内，提出其已经作出并将维持的资金安排的合理证明。
A．21
B．24
C．28
D．30
