整定计算原始底稿需整理成册,妥善保管,以便日常运行或事故处理时查√。
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The development of the container system().
A. makes a cargo reach the farthest destination
B. makes the ship go as far as she can
C. is the most significant change in shipping industry
D. is the most economical change in shipping industry
依据腈的命名方法,CH3CH2CN称为()。
A. 乙基腈
B. 乙腈
C. 丙基腈
D. 丙腈
在Excel2003的图表选项对话框中,不能设置()。
A. 图表标题
B. 分类轴标题
C. 数值轴标题
D. 图表位置