题目内容
(请给出正确答案)
提问人:网友wylhistory
发布时间:2022-01-07
[主观题]
Loading and unloading are the activities that occur with each link of the production and circulation process.
简答题官方参考答案
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A、Depth loading
B、Gravity loading
C、Surface loading
D、Centrifugal loading
The adoption of containers facilitated()to a great extent.
A. the loading and unloading
B. to have loaded and unloaded
C. us to loading and unloading
D. us to load and unload
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