爆炸性气体环境的电气线路应敷设在爆炸危险性较小或距离释放源较远的位置。当易燃物质比空

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问题:

爆炸性气体环境的电气线路应敷设在爆炸危险性较小或距离释放源较远的位置。当易燃物质比空气重时,电气线路应在( );架空敷设时宜采用电缆桥架;电缆沟敷设时沟内应充砂,并宜设置排水设施。

A.建筑物的内墙敷设
B.较低处敷设
C.电缆沟敷设
D.较高处敷设或直接埋地

考点:安全工程师安全生产技术安全生产技术
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Many students get ill easily .They have to go to hospital and may miss a lot of classes. What can we do to keep healthy? Here are some tips:

Healthy food. You should eat less fast food but more vegetables and fruit. You’d better drink 500 ml milk every day .Remember to eat breakfast.

Enough exercise. Doing exercise is important. It makes you more athletic .You can play some sports after class or on weekends.

Happy smiles. Smile is a good way to make you healthy .Try to find things that can make you laugh .Remember that smile is the best medicine to cure(治疗)your illness.

Good rest. If you want to get a good grade ,you must have a good rest .As a famous saying goes, “Early to bed and early to rise makes a man healthy ,wealthy(富有的)and wise(聪明的).

小题1:将划线句子翻译成汉语。_______________________________________.

小题2:完成下列句子,每空词数不限。

If you get ill, you have to __________________________and may __________________.

小题3:完成下列句子,每空词数不限。

You can play sports_________________ or___________

题型:单项选择题

首次将“三个代表”重要思想确立为党的指导思想,是在党的( )

A.十四大

B.十五大

C.十六大

D.十七大

题型:单项选择题

()

A.

B.

C.2

D.

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明示保证

题型:单项选择题

关于结合胆红素的结构和性质特点的叙述错误的是:()

A.是胆红素与葡萄糖醛酸结合的产物

B.与重氮试剂反应呈直接阳性

C.又称肝胆红素

D.进入脑组织将神经核黄染,导致核黄疸症

E.水溶性物质

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