尖轨尖处轨距的作业验收容许偏差管理值为()。
A.+1mm
B.+2mm
C.±3mm
D.±4mm
参考答案:A
They'll ________ the subway to the space museum. It'll ________ them half an hour.[ ]
A. take; bring
B. bring; take
C. take; take
D. bring; bring
—Are there any _______ in the picture?
—Yes, there are. [ ]
A. fish
B. pork
C. beef