油品馏程（沸点范围）是通过（）手段测定的。A.恩氏蒸馏 B.实沸点蒸馏 C.平衡气化

根据短文内容及首字母提示，在空白处填入一个适当的单词。

     Computers are useful machines. They can help people a lot in their daily (1)I            . For example,

they can help people to save much time to do (2)m            work, and they can help people to work out

many (3)p           . More and more people learn to use computers.

     Today more and more (4)f             own computers. Parents buy computers (5)f            their children.

They hope computers can (6)h             them improve their studies. However, many of their children

(7)u             computers to play games and watch videos instead of studying. So many teachers and parents

complain that computers cannot help children to study but make them fall (8)b            . So computers are

locked in boxes by parents.

     In some (9)o             countries, even some scientists also hate computers. They say computers

(10)l            many of people lose their jobs or bring them a lot of trouble. 

     Will computers bring people trouble or happiness? It will be decided by today's students themselves.

刘某与某县一国有煤矿签订了一份劳动合同，在该煤矿从事井下作业。由于煤矿安全措施不得力，井下危险常有发生。刘某等人就该情况多次向领导反映，煤矿以资金运转不开为由一拖再拖，未采取任何措施。后，井下发生大面积塌方，造成3人死亡，10余人受伤。就该事件，下列说法错误的是( )

A．当地劳动局可以责令该煤矿停产整顿

B．当地劳动局可以责令改正，要求该煤矿加强安全措施

C．当地劳动局可以对该煤矿处以一定数额的罚款

D．对当地煤矿的相关负责人员应该追究其刑事责任

如图所示麻醉机中，碱石灰罐二氧化碳吸收效率取决于（）

A.碱石灰罐的长度

B.碱石灰的重量

C.呼出气的水分含量

D.碱石灰罐对气流的阻力

E.碱石灰罐所含与呼吸潮气量有关的气体容积与分布

当空气中氧气浓度小于（）％时，人立即死亡。

A．17

B．15

C．12

D．3

病人，女，30岁，妊娠3个月，近日出现胎漏胎动，伴腰膝酸软乏力，治疗应首选

A．鹿茸

B．益智仁

C．菟丝子

D．续断

E．骨碎补