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【单选题】
一连串 反应A→P→S , P 为目的产物,反应均为一级, k 1 = 1 min -1 , k 2 = 2 min -1 , 反应在反应器中进行,最佳空时为( ) min 。
A.
0.5
B.
0.71
C.
0.68
D.
0.65
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参考答案:
举一反三
【单选题】― Has Jackson finished his work today? ― I have no idea, but he ______ it when I saw him this morning.
A.
had done
B.
would do
C.
was doing
D.
would have done
【简答题】Spoken English is not well planned, but ______.
【单选题】一So you didn’t say “hello” to him last night? 一Well,I stopped and smiled when I saw him,but he _______me and walked on.
A.
ignored
B.
refused
C.
denied
D.
missed
【单选题】●将一个递归算法改为对应的非递归算法时,通常需要使用 (44) 。 (44)
A.
优先队列
B.
队列
C.
循环队列
D.
【简答题】a well-planned mover
【简答题】相撲 練習二 二、2、
【单选题】—So why didn't you say 'hello' to him yesterday? —Well, I stopped and smiled when I saw him, but he _____ me and walked on. [     ]
A.
ignored
B.
refused
C.
denied
D.
missed
【判断题】汇总记账凭证账务处理程序的主要优点在于保持科目之间的相对应关系。
A.
正确
B.
错误
【单选题】相撲 練習一 二、2、
A.
B.
C.
C
【单选题】将一个递归算法改为对应的非递归算法时,通常需要使用(44)。
A.
优先队列
B.
队列
C.
循环队列
D.
参考解析:
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