| 释义 |
- abbr.数据通信信道（Data Communication Channel）；更改设计委员会（Design Change Committee）；袖珍数字磁带（Digital Compact Cassette）
- 1
However, facts A, B, and C are never used again; they were instrumental to the argument because they allowed one to establish D, but once D is established, A, B, and C can be safely forgotten. 然而，A,B和C再也没有被使用到；他们只是辅助性的证明，因为它们被用来建立D，然而一旦D被建立起来后，A,B,C可以被毫无顾虑地忘掉。 - 2
The task executes when it receives business items A and B, or C and D, or B and C as inputs. 任务在接收到业务项 A 和 B，或 C 和 D，或B 和 C 作为输入时，该任务将执行。 - 3
The whole thing thus boils down to solving 5c"+d'=54 and c"d'=144, which means that c" is solution of x(54-5x)=144 or 5x2-54x+144=0. 所有的事情都归结于解方程组5c"+d'=54,c"d'=144,即表示c''是x(54-5x)=144 或 5x2-54x+144=0的解。
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