A.最大限度的保证了丁二烯的回收率
B.从节省冷量的角度考虑,最适合采用前加氢和后冷
C.最适合采用前加氢和前冷
D.采用后冷的不足之处是提取的富氢纯度只有70%左右
第5题
A、p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px 'Times New Roman'} Errors in chromosome separation are rarely a problem for an organism.
B、p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px 'Times New Roman'} Errors in chromosome separation can result in a miscarriage.
C、p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px 'Times New Roman'} Errors in chromosome separation can result in cancer.
D、p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px 'Times New Roman'} Errors in chromosome separation can result in a child with severe handicaps.
E、p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px 'Times New Roman'} Errors in chromosome separation can cause numerous problems for an organism.
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