运输实现物流的()效用。
A、时间
B、经济
C、空间
D、可得性
参考答案:C
实施绿色通道制度的企业在口岸对有关申报内容进行更改,口岸检验检疫机构应按绿色通道制度的规定予以放行。 ( )
The old engineer's eyes still shone bright in the wrinkled brown face and his step as he came across
the room was________,though slow. [ ]
A. shaky
B. heavy
C. casual
D. steady