分子筛脱水再生控制系统正压防爆柜采用主副柜型式,()放置被保护的PLC、PANELVIEW及KF2等
A、下部主柜
B、上部主柜
C、下部副柜
D、上部副柜
参考答案:B
____ to bring your homework tomorrow![ ]
A. Not forget
B. Aren' forget
C. No forget
D. Don't forget
异地物种形成