（）has 3 parts: warehouse, high story shelf and stacker.
A. Multi-story warehouse
B. Automatic multi-story warehouse
C. Stereo-style warehouse
D. stereoscopic warehouse
当两个线圈互相垂直时，互感电动势为（）。
A. 最大
B. 最小
C. 零
D. 不能确定
The integrated logistics activities, equipment and information network etc is called（）
A. logistics integration
B. logistics industry
C. logistics center
D. Logistics Park
Ocean bill of lading is the（） between carrier and shipper.
A. evidence of the contract of carriage
B. Document
C. trading record
D. Bill
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