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【单选题】
使用机车的主要运输巷道.兼作人行道的集中带式运输机巷道.升降人员的绞车道以及升降物料和人行交替使用的绞车道，其照明灯间距不得大于（）m。
A.
10。
B.
15。
C.
20。
D.
30。
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【单选题】E When you are little, the whole world feels like a big playground. I was living in Conyers, Georgia, the summer it all happened. I was a second grader, but my best friend Stephanie was only in the fi...
A.
To introduce Stephanie to her.
B.
To prevent her from seeing his painting.
C.
To put the materials back in the yard.
D.
To show his artwork to her.
【单选题】下列关于带式运输机描述错误的一项是( )。
A.
带式运输机有金属带和橡胶带两种
B.
常用的是金属带式运输机
C.
不受地形限制，结构简单，运行方便灵活，生产率很高
D.
带式运输机运行时驱动轮带动皮带连续运转
相关题目：
【单选题】E When you are little, the whole world feels like a big playground. I was living in Conyers, Georgia, the summer it all happened. I was a second grader, but my best friend Stephanie was only in the fi...
A.
To introduce Stephanie to her.
B.
To prevent her from seeing his painting.
C.
To put the materials back in the yard.
D.
To show his artwork to her.
【单选题】下列关于带式运输机描述错误的一项是( )。
A.
带式运输机有金属带和橡胶带两种
B.
常用的是金属带式运输机
C.
不受地形限制，结构简单，运行方便灵活，生产率很高
D.
带式运输机运行时驱动轮带动皮带连续运转
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