（二） 某企业维修部门接到一项维修任务。整个任务从2006年9月1日开始，工期26天，必须在规定时间内完成任务。经过任务分解和工作时间确认，形成下列工作明细表和网络图。 某维修任务工作明细表
某维修任务网络图
根据上述资料，回答下列问题：
此计划关键线路上连接的作业包括（）。
A．ABCEIJ
B．ABCFHIJ
C．ABCGHIJ
D．ADJ
参考答案：C
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| A man who knows how to write a personal letter has a very powerful tool. A letter can be enjoyed, read and 1 . It can set up a warm conversation between two people far apart (远离的); it can keep a 2 with very little effort. I will give 3 . A few years ago my older brother and I were not getting 4 . We had been close as 5 but had grown apart. Our meetings were not 6 ; our conversation was filled with arguments and quarrels; and every effort to clear the air seemed to only 7 our misunderstanding. Then he 8 a small island in the Caribbean and we 9 touch. One day he wrote me a letter. He described his island and its people, told me what he was doing, said how he felt, and encouraged me to 10 . Rereading the letter, I was 11 by its humor and clever expressions. These were all qualities for which I had 12 respected my older brother but 13 he no longer had them. I had never known he could write so 14 . And with that one letter we became friends 15 . It might never have occurred to 16 to write me if he had not been in a place where there were no 17 . For him, writing was a necessity. It also turned out to be the best way for us to get back in touch. Because we live in an age of 18 communication (通讯), people often 19 that they don't always have to phone or email. They have a 20 . And that is to write. | ||||
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