1. A( )=(A)2. (A)=(B)S3. (B)=B( )1为控制步骤时:S不被吸附分母中没有请考虑化学反应该反应在全混流反应器中进行反应温度为20℃液料的体积流量为 CA0= CB0=184molm3催化剂的浓度CD=实验测得该反应的速度方程为: rA=kCACD式中k=()若要求A的转化率为40试求反应器的体积解:设A的转化率为x则有:对于全混
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1. 设A=B=计算3A-B2A3B若X满足AX=B求X若Y满足(2A-Y)2(B-Y)=0求Y.解:(1)3A-B=-=2A3B==(2)因AX=B则X=B-A即X=-=(3)因为(2A-Y)2(B-Y)=0所以3Y=2A2B即Y=(AB)=()==2. 计算下列矩阵的乘积.(1) (2) (3) (4) (5) (6) .【解】(1)
rank(军衔) 5. shift from …to从……转为The cost shift from million to tens of thousand HK Dollars a great relief for DP. 费用由百万移到数万港币冲印行业得到极大的帮助 7. How do you understand the last sentence
定理:[R]为环则对任ab?R有:(1)a0=0a=0(2)a(-b)=(-a)b=-(ab)(3)(-a)(-b)=ab(4)如果环有单位元则(-1)a=-a(5)如果环有单位元则(-1)(-1)=1关于第1个运算的单位元0在第2个运算下对任意a?R有a0=0a=0即0为的零元称关于第1个运算的单位元为环的零元如果环是有单位元的环则将关于第2个运算的单位元称为环的单位元说明:关于环的修饰都是对第
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line LevelNinth LevelT1-weighted (A) and T2-weighted (B) MR images on admission day 30. . Kim and . Cho AJNR Am J Neuroradiol 200728:141-142?2007 by American Society of Neuroradiology
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A(或B)卷题号一二三四总分得分 得分评阅人复核人一填空:(本题满分10分每空1分) 1 2 34得分评阅人复核人 二简答题:(本题满分20分每小题5分)
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