捣固车一次拨道量不宜超过(),曲线地段上挑、下压量应尽量接近,每次作业后应进行道床动力稳定。
A.30mm
B.50mm
C.80mm
D.100mm
参考答案:C
I have just come in to see if I can be _____ any assistance to them. [ ]
A. with
B. on
C. at
D. of
待核查账户按()存款计息。
A、定期
B、活期
C、通知
D、协定