行车事故发生后,由( )部门负责勘察现场和事故调查。A.工务 B.安监 C.公安

题型:单项选择题

问题:

行车事故发生后,由( )部门负责勘察现场和事故调查。

A.工务

B.安监

C.公安

D.机务

考点:安全工程师安全生产技术安全生产技术
题型:单项选择题

传统民本思想也主张以民众为社稷之根本,但其目的是“治民”、“驭民”;党的以人为本思想是立足我国发展实践,适应新的发展要求提出来的,是对我国传统民本思想的继承和发展。从传统民本思想到党的以人为本思想的转变过程可以看出

①思维创新就是“在绝对不相容的对立中思维”    ②创新要立足于社会实践

③创新推动社会制度的变革和文化的发展          ④创新是事物发展的源泉和动力

A.①③

B.②④

C.③④

D.②③

题型:单项选择题

患者精神抑郁,情绪不宁,善太息,胸胁胀痛,痛无定处,脘闷嗳气,腹胀纳呆,月经不调,舌苔薄腻,脉弦。治疗应首选

A.血府逐瘀汤

B.半夏厚朴汤

C.黄连温胆汤

D.柴胡疏肝散

E.甘麦大枣汤

题型:单项选择题

阅读理解

      At the age of sixteen,   I joined a volunteer group with my dad. I went on my first volunteer project

in West Virginia. On the night we arrived,   we discovered that "our family" was living in a trailer(拖车)

that was in poor condition. A crew had been working on it for two weeks,   but every time they finished

one problem,   another surfaced.

     We decided the only reasonable solution was to build a new house-something unusual but necessary

under these circumstances. The family was overjoyed with their new house that was twenty by thirty feet

with three bedrooms,   a bath and a kitchen.

    On Tuesday of that week,   while we were eating lunch together,   I asked the family's three boys,  

Josh,   Eric and Ryan,   "What do you want for your new room?"Expecting toys and other gadgets that

children usually ask for,   we were astonished when Josh responded,   "I just want a bed."

      The boys had never slept in a bed! They were accustomed to plastic mats. That night we had a

meeting and decided that beds would be the perfect gift. On Thursday night,   a few adults in our group

drove to the nearest city and bought beds and new bedding.

    When we saw the delivery truck coming,   we told the family about the surprise. We could hardly

contain ourselves. It was like watching excited children on Christmas morning.

     That afternoon,   as we fitted the frames of the beds together,   Eric ran into the house to watch us.

Too dirty to enter his room,   he observed with wideeyed enthusiasm from the doorway.

     As my father slipped a pillowcase onto one of the pillows,   Eric asked,   "What is that?"

     "A pillow,   " he replied.

     "What do you do with it?" Eric continued to ask.

     "When you go to sleep,   you put your head on it,   " I answered softly. Tears came to my eyes as my

father handed Eric the pillow.

     "Oh…that's soft,   " he said,   hugging it tightly.

     Now,   when my sister or I start to ask for something that seems urgent,   my dad gently asks,  

"Doyouhaveapillow?"

     We know exactly what he means.

1. The writer's first volunteer project was________.

A. working on a poor trailer

B. helping a poor family

C. donating beds and bedding

D. dealing with a housing problem

2. On hearing Josh's answer,   the writer was shocked because________.

A. the family lived in a trailer

B. he expected to get some toys

C. he didn't know what a bed was

D. the boys had no bed to sleep in

3. From the passage,   we can learn that Eric had never seen________ before.

A. a trailer  

B. a truck

C. a pillow  

D. a house

4. By saying "Doyouhaveapillow?",   the writer's father means that________.

A. what they want to get may be unnecessary

B. they should not waste money on small things

C. they should do more volunteer work for the poor

D. what he will buy is not what they want but a pillow

题型:单项选择题
如图所示,处在磁感应强度为B的匀强磁场中的单匝矩线圈abcd,以恒定的角速度ω绕ab边转动,磁场方向垂直于纸面向里,线圈所围面积为S,线圈导线的总电阻为R.t=0时刻线圈平面与纸面重合,且cd边正在离开纸面向外运动.则正确的是(  )

A.时刻t线圈中电流的瞬时值icosωt

B.线圈中电流的有效值I

C.线圈中电流的有效值I=

D.线圈消耗的电功率P

题型:单项选择题

蒸汽严密性试验的检查项目有哪些?

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