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单选题
You are on a multiple-product chemical tanker with orders to load diethylamine.What is NOT a requirement for transporting this cargo（）.
A
You must have two toxic vapor detectors or the pumproom must meet special requirements
B
Each crew member must be provided with an emergency escape breathing apparatus
C
A person taking cargo samples must wear protective clothing
D
If you are carrying propionic acid also，the venting systems must be segregated
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