YB25包装机运行中，在机器相位300°～310°时连续三次未检测到商_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题填空题

YB25包装机运行中，在机器相位300°～310°时连续三次未检测到商标纸则显示商标纸供纸通道“（）”故障。

答案

参考答案：缺商标纸

改错题

短文改错。
此题要求改正所给短文中的错误。对标有题号的每一行作出判断：
如有错误（每行只有一个错误），则按下列情况改正：
此行多一个词：把多余的词用斜线(／)划掉，在该行右边横线上写出该词，并也用斜线划掉。
此行缺一个词：在缺词处加一个漏字符合（^），在该行右边横线上写出该加的词。
此行错一个词：在错用的词下面划一横线，在该行右边横线上写出改正后的词。
注意：原行没有错的不要改。

I have been enjoying reading very much before I
became a schoolboy. Many of my spare time is
spent in reading instead of watch TV. As a middle
school student, I am very busy on my lessons. So I
have only a little time, during the weekdays, read
those books I am interested in them. On weekends,
however, I often sat at my desk reading for hours.
Sometime, I lose myself so deeply in the books that I
forget to have my meals. Reading bring me a lot of
knowledge, pleasure and a ability to write better.

1_______
2_______
3_______
4_______
5_______
6_______
7_______
8_______
9_______
10_______

填空题

植物体内的多糖主要是淀粉和膳食纤维，而动物体内的多糖则是（）。