特种设备投入使用前，使用单位应当核对其是否附有()规定的相关文件。A.《安全生产法》

有助于鉴别肾前性和肾后性急性肾衰竭的检查是（）

A.磁共振水成像

B.肾穿刺活检

C.血常规

D.血尿素氮和肌酐

E.每小时尿量

One day I told Mr Wang,our math teacher,was ill.                                                                             61.________

I was worried about him and went to see him after the school.                               62.________

When I enter his room,he struggled up to welcome                                              63.________

me.I let him lay down again.Mr Wang looked pale.                                               64.________

I asked about his trouble.He said he was having                                                    65.________

a bad cold.Then he had a bad cough.After take some                                             66.________

medicine he was getting better.He asked me that we                                              67.________

liked the teacher who took place.When he heard                                                   68.________

everything was all right,I could see he was pleasing.                                             69.________

Finally I asked him don’t to worry about the work                                                70.________

and have a good rest.

属于低度危险性物品有（）。

A.生活卫生用品和病人、医护人员生活和工作环境中的物品

B.毛巾、面盆、痰盂（杯）

C.地面、便器

D.墙面、桌面、床面、被褥

E.一般诊断用品（听诊器、血压计等）

说明花生清棵技术。

A．春天

B．夏天

C．秋天

D．冬天