简述甲醇车间日本理研GP-145可燃气体报警仪报警值的设置？_爱下问搜题

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问题问答题简答题

简述甲醇车间日本理研GP-145可燃气体报警仪报警值的设置？

答案

参考答案：

按下白色按钮ALARM，调整报警电位器ALARM使指示在50%LEL处。

完形填空

It was a cloudy Saturday afternoon. A group of birds were having a great time
36  food and playing on the main road. All of a sudden, a big truck sped through… A   37  thing happened. Birds could   38 , too. Although this bird had already   39 , another bird flew over to her immediately, just like a family member, unable to accept the   40 .
Not long after that, another car passed by quickly,   41  the dead bird’s body to whirl(旋转) with the wind. The male bird   42  the movement. As if she was still alive, he   43  flew beside her again. He stared at her as if he was asking, “ 44  are you not getting up?”
  45 , she was no longer able to hear him. At the same time, he was trying to lift her up. He,   46 , was unable to bear the burden. Another car soon passed by. He quickly   47 . Once the car had gone, he came down again.
Although other birds told him that it was   48 , he never gave up. He was trying his best to lift her up to   49  her flying again. Another car passed by, and her dead body whirled again as if she was still   50  and trying to fly. He had used all of his   51 , but he was too weak.
The   52 , who was taking photos of the scene, said he couldn’t shoot any more. He was so   53  that the living bird was going to be hurt by passing cars. So he picked up he dead bird and left it at the   54 . The living one still stayed at a nearby tree as if he was crying with his singing and   55  to leave.

C．searching for

D．setting down

A．disappeared

D．surprisingly

A．Unfortunately

C．by accident

D．photographer

单项选择题

月经后期之首选穴位是：

A．三阴交归来
B．血海地机
C．丰隆膻中
D．大赫气穴
E．中极太冲