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【单选题】
在吸收塔某处,气相主体浓度y=0.025,液相主体浓度x=0.01,气相传质分系数k y =2kmol/m 2 ·h,气相传质总K Y =1.5kmol/m 2 ·h,则该处气液界面上气相浓度y i 应为 ( ) 。平衡关系y=0.5xA.
0.02
B.
0.01
C.
0.015
D.
0.005
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反馈参考答案：
举一反三
【单选题】I think it will be long ______ the influence of Sanlu Milk Powder incident dies down.
A.
that
B.
since
C.
before
D.
after
【单选题】—What will the weather be like tomorrow? —I think it will be________as it was yesterday.
A.
so a sunny day
B.
so sunny a day
C.
as sunny a day
D.
as a sunny day
【简答题】用符号“ ∈ ”或“/∈ ”填空: (1)0_______N; (2) _______Q; (3) _______Z; (4)-5_______R; (5) _______Z; (6) _________Q; (7)-12_______Z; (8)3.24______R.
【简答题】12_____Z 填∈或 ∉
【单选题】“The First Class in this New Term” will be covered on CCTV tonight. I think it will be very .So please don’t miss it.
A.
live, alive
B.
live, lively
C.
alive, lively
D.
alive, living
【简答题】1 【填空题】 用符号“∈”或“∉”填空 (1)0 N; (2) 0.6 Z; (3)π R; (4)1/3 Q; (5)0 ∅ 2 【简答题】 用列举法表示下列集合: (1) 大于-4且小于12的全体偶数; (2) 方程 -5x-6=0的解集.
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