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（）.AYou must have two toxic vapor detectors or the pumproom must meet special requirementsBEach crew member must be provided with an emergency escape breathing apparatusCA person taking cargo samples must wear protective clothingDIf you are carrying propionic acid also，the venting systems must be segregated
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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