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【单选题】
不动,非得不用,非危不战,主不可以怒而兴师,将不可以愠而致战。这点关注的是( )。A.
重战
B.
C.
备战
D.
大战
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皮皮学刷刷变学霸
举一反三
【简答题】The problem required (pay) attention to.
【单选题】The team was required to _______a solution to the problem by the end of this month.
A.
figure out
B.
bring out
C.
find out
D.
go out
【单选题】He agreed that the problem required _________.
A.
to look into
B.
to be looked into it
C.
looking into
D.
being looked into
【简答题】50°C 等温操作条件下,在间歇釜中进行液相一级不可逆反应 A→2R ,反应速率 r A =kC A ,(速率单位 kmol/m 3 ·h ),反应速率常数 k =9.52×109 exp (-7448.4/ T ) h -1 。 A 的初始浓度 C AO =2.3 kmol/m 3 , R 的摩尔质量为 60 ,初始浓度为 0 。若要求 A 的转化率 x A 为 0.7 ,反应体积为 22.2m...
【简答题】What is the software's task for the computer to be used to solve an applicaton proolem A. to bridge the gap between the concepts in an application and computer concepts. B to direct the computer to tr...
【单选题】For writing based on informative graphs, the writer may also be required to write on the ____ of the problem presented.
A.
reasons
B.
development
C.
Solution
D.
All the above
【简答题】* 在间歇釜中进行一级不可逆反应液相反应 A → 2R ,一定温度下, r A = 1.84 c A kmol × m -3 × h -1 , c A,0 =2.4kmol × m -3 , R 的分子量为 60 , c R,0 = 0 ,若转化率 x A = 0.8 ,装置每天生产产物 R 60000 kg ,辅助生产时间为 0.76h 。求: ( 1 )该装置每小时生产产物 R = ( )...
【简答题】* 在间歇釜中进行一级不可逆反应液相反应 A → 2R ,一定温度下, r A = 1.84 c A kmol × m -3 × h -1 , c A,0 =2.4kmol × m -3 , R 的分子量为 60 , c R,0 = 0 ,若转化率 x A = 0.8 ,装置每天生产产物 R 60000 kg ,辅助生产时间为 0.76h 。求:
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