请选择DCBA2X,R7U4V.V0B.@8l/~2P)U*k2u This kind of food ________ cool, clean and dry according to the instruction.8k0X/v1x:]+K
A. should be carried8k0X/v1x:]+K
B. must be put8k0X/v1x:]+K
C. should be placed8k0X/v1x:]+K
D. must be kept8k0X/v1x:]+K