问题 单项选择题

烟花爆竹生产中的“三固定”是指( )。

A.固定时间,固定设备,固定最大粉碎药量
B.固定时间,固定工房,固定设备
C.固定工房,固定设备,固定最大粉碎药量
D.固定工房,固定时间,固定最大粉碎药量

答案

参考答案:C

解析: 粉碎和筛选原料时应坚持做到:
(1)三固定:固定工房、固定设备、固定最大粉碎药量。
(2)四不准:不准混用工房、不准混用设备和工具、不准超量投料、不准在工房内存放粉碎好的药物。
(3)所有粉碎和筛选设备应接地,电气设备必须是防爆型的,要做到远距离操作,进出料时必须停机停电,工房应注意通风。

单项选择题

阅读下面短文,从短文后各题所给的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。学科&网

Hundreds of people have formed impressions of you through that little device(装置) on your desk. And they’ve never actually   41   you. Everything they know about you   42   through this device, sometimes from hundreds of miles away.   43   they feel they can know you   44   from the sound of your voice. That’s how powerful the   45   is.

Powerful, yes, but not always   46  . For years I dealt with my travel agent only by phone. Rani, my faceless agent whom I’d never met   47  , got me rock-bottom prices on airfares, cars, and hotels. But her cold voice really   48   me. I sometimes wished to   49   another agent.

One morning, I had to   50   an immediate flight home for a family emergency. I ran into Rani’s office   51  . The woman sitting at the desk,   52   my madness, sympathetically jumped up. She gave me a   53   smile, nodded while listening patiently, and then printed out the   54   immediately. “What a wonderful lady!” I thought.

Rushing out   55   I called out over my shoulder, “By the way, what’s your name?” “I’m Rani,” she said. I turned around and saw a   56   woman with a big smile on her face waving to wish me a safe trip. I was   57  ! Why had I thought she was cold? Rani was, well, so   58  .

Sitting back in the car on the way to the airport, I figured it all out. Rani’s   59  ---her warm smile, her nods, her ‘I’m here for you’   60  ---were all silent signals that didn’t travel through wires.

44()

A. rather

B. also

C. just

D. already

多项选择题