【单选题】精馏塔操作前,釜液进料位置应该达到( )。
【单选题】_____ I’m hungry, _____ I have some food.
C.
Because, / D Because, but
【简答题】In the base solution, the Latimer diagram of Br : BrO 3 - ____x____BrO - ______0.76V_________ Br - |_____________ 0.61V _____________| So should BrO - disproportionate or not?
【单选题】__________koalas are friendly, __________he wants to see them first. A. Because, so B. /, so C. /, because
【单选题】____ dolphins are funny, ____ I like them very much. [ ]
【单选题】“人日”指的是古代正月前面七天的第()天。