安全生产管理的基本对象是企业的( )。 A.设施 B.员工 C.办公场地 D

题型:单项选择题

问题:

安全生产管理的基本对象是企业的( )。

A.设施
B.员工
C.办公场地
D.环境

考点:安全工程师安全生产管理知识安全生产管理知识
题型:单项选择题

读下列经纬网图,回答题。

小题1:下列关于四地区农业可持续发展方向的叙述,正确的是( )

A.A地区要扩大耕地面积,提高粮食产量

B.B地区要积极参与国际市场,发展以出口为主的农业

C.C地区要大力发展机械化生产,提高粮食产量

D.D地区要扩大灌溉面积,提高粮食产量小题2:图中四地区在农业发展过程中,与其主要限制性条件组合正确的是( )

①A—热量条件   ②B—土壤条件     ③C—光照条件     ④D—水源条件

A.①②③

B.①③④

C.①②④

D.②③④

题型:单项选择题

(6分)已知可简写为:;又已知降冰片烯的分子结构可表示为:

回答下列问题:

(1)降冰片烯属于__________。

  A、环烃    B、不饱和烃    C、烷烃    D、芳香烃

(2)降冰片烯的分子式为__________。

(3)降冰片烯的一种同分异构体(含有一个六元环的单环化合物)的结构简式为__________。

(4)降冰片烯不具有的性质__________。

  A、能溶于水         B、能发生氧化反应

  C、能发生加成反应   D、常温常压下为气体

题型:单项选择题

阅读理解。

      It was at least two months before Christmas when nine-year-old Rose told her father and me that she

wanted a new bicycle. As Christmas drew nearer, her desire for a bicycle seemed to fade, or so we thought.

We bought the latest rage, Baby Sitter's Club dolls, and a doll house. Then, much to our surprise, on December

23rd, she said that she "really wanted a bike more than anything else." It was just too late, what with all the

details of preparing Christmas dinner and buying last-minute gifts, to take the time to select the "right bike" for

our litter girl. So here we were Christmas Eve around 9 p.m., with Rose and her six-year-old brother, Dylan,

nestled snug in their beds. Now we could only think of the bicycle and the disappointment of our child. "What

if I make a little bicycle out of clay (泥) and write a note that she could trade (互相交换) the clay model in for

a real bike?" Her dad asked. "This is an expensive item and she is 'such a big girl,' it would be much better for

her to pick it out." So he spent the next four hours painstakingly working with clay to make a tiny bike. On

Christmas morning, we were excited for Rose to open the little hear shaped package with the beautiful red and

white clay bike and the note. Finally, she opened it and read the note aloud. "Does this mean that I trade in this

bike that Daddy made me for a real one?" Beaming, I said, "Yes." Rose had tears in her eyes when she replied,

"I could never trade in this beautiful bicycle that Daddy made me. I'd rather keep this than get a real bike." At

that moment, we would have moved heaven and earth to buy her every bicycle on the planet!

1. Choose the right time order of the following events.

     a. The girl asked for a new bike.

     b. The girl opened the little heart shaped package.

     c. The parents bought the girl a modern and popular doll.

     d. The father made the girl a bike with clay.

     e. The girl would rather keep the clay bike than get a real one. [ ]

A. a, b, c, e, d

B. a, c, d, b, e

C. a, c, b, d, e

D. a, b, d, c, e

2. Which of the following statements is true according to the passage? [ ]

A. The parents wanted the girl to have the clay bike forever.

B. Tears were in the girl's eyes because she didn't like the present at all.

C. The girl never lost her desire for a bike.

D. The parents paid little attention to the daughter's desire for a bike.

3. Why did Dad make the clay bicycle? [ ]

A. He wanted his daughter to buy a real one.

B. He didn't want to disappoint his daughter.

C. He thought his daughter would like it.

D. He wanted to give his daughter a surprise.

4. What can be inferred from the last sentence? [ ]

A. The parents were not happy and encouraged.

B. The parents didn't feel comfortable and relaxed.

C. The parents were moved and felt proud of the girl.

D. The parents felt disappointed and sorry for the girl.

题型:单项选择题
使用下面如图所示的杠杆时,费力的是(  )

A.

B.

C.

D.

题型:单项选择题

枕大孔后上方为()

A.延髓

B.桥脑

C.小脑蚓锥

D.小脑扁桃体

E.颈髓

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