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问题 单项选择题

网络计划的优化中，工程成本是由直接费用及间接费用两部分组成，如果缩短工期，它们与工期的关系是（）。

A、直接费用的增加和间接费用的增加

B、直接费用的增加和间接费用的减少

C、直接费用的减少和间接费用的增加

D、直接费用的减少和间接费用的减少

答案

参考答案：B

改错题

第Ⅱ卷（非选择题：共35分）

第四部分：写作（共两节，满分35分）

第一节：短文改错 (共10小题;每小题1分,满分10分)

增加：在缺词处加一个漏词符号（∧），并在此符号下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：    1. 每处错误及其修改均仅限一词；

2. 只允许修改10处，多者（从第11处起）不计分。

John was visiting he 90-year-old grandpa, who lived in the country. In the first morning of the visit, John grandpa prepared a breakfast of bacon and eggs. John noticed some dirt on his plate, and asks, “Are these plate clean?” His grandpa replied, “They’re as cleaner as cold water can get them. Just go ahead and finish your meal.” For lunch, Grandpa made hamburgers. Again, John has found the plates were dirty, but he asked the same question. Without looking up, his grandpa gave same answer. Later, as John was left, his grandpa’s dog started to growl(咆哮), and wouldn’t let him pass. Grandpa shouted at the dog, “Cold Water, go lie down!”
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问答题 简答题

简述直干式主要特点？
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