操作方便、造价低,装卸方便,但对催化剂强度要求较高的反应器是()反应器。
A、列管式
B、固定床
C、膨胀床
D、催化蒸馏塔组合
参考答案:C
—Would you like more iced tea, Kate?
— ______. I'm full. [ ]
A. Yes, please
B. No, I wouldn't
C. No, thanks
D. Yes, I would
※ [46] 400~600 . (30)