双代号网络图中的节点表示( )。A.工作 B.工作的开始或结束,以及工作之间的连接

题型:单项选择题

问题:

双代号网络图中的节点表示( )。

A.工作

B.工作的开始或结束,以及工作之间的连接状态

C.工作的开始

D.工作的结果

考点:监理工程师(建设部)建设工程质量、投资、进度控制建设工程质量、投资、进度控制
题型:单项选择题

治疗血虚时配伍补气药的理论依据是

A.气能生血

B.气能摄血

C.气能行血

D.血能载气

E.血能生气

题型:单项选择题

阅读理解。

     When I was in the third grade, I was picked to be the princess (公主) in the school play. For weeks

my mother had helped me practice my lines. But once onstage, every word disappeared from my head.

Then my teacher told me she had written a narrator's (解说者的) part for the play, and asked me to change

roles. Though I didn't tell my mother what had happened that day, she sensed my unhappiness and asked

if I wanted to take a walk in the yard.

     It was a lovely spring day. We could see dandelions (蒲公英) popping through the grass in bunches, as

if a painter had touched our landscape with bits of gold. I watched my mother carelessly bend down by one

of the bunches."I think I am going to dig up all these weeds," she said."From now on, we'll have only roses

in this garden." 

     "But I like dandelions," I protested. " All flowers are beautiful-even dandelions!"

     My mother looked at me seriously. "Yes, every flower gives pleasure in its own way, doesn't it?" she

asked thoughtfully. I nodded. " And that is true of people, too,"she added.

     When I realized that she had guessed my pain, I started to cry and told her the truth.   

     "But you will be a beautiful narrator," she said, reminding me of how much I loved to read stories aloud

to her.

     Over the next few weeks, with her continuous encouragement, I learned to take pride in the role. The big

day finally came. A few minutes before the play, my teacher came over to me. "Your mother asked me to give

this to you," she said, handing me a dandelion. After the play, I took home the flower, laughing that I was

perhapes the only person who would keep such a weed.

1. The girl did not play the role of the princess mainly because _____.

A. she felt nervous on the stage.

B. she lost her interest in that role.

C. she preferred the role of the narrator

D. she had difficulty memorizing her words

2. Why did the mother suggest a walk in the garden?

A. To remove the dandelions

B. To enjoy the garden scene

C. to have a talk with her daughter.

D. to hlep her daughter with the play.

3. What is the main idea of the story?

A. Everybody can find his or her own way to success.

B. Everybody has his or her own value in the world.

C. Everybody should learn to play different roles

D. Everybody has some unforgettable memory.

题型:单项选择题

物力资源的节约的主要途径有()

A.改革产品设计

B.采用先进的工艺

C.采用新的材料和代用料

D.采用先进的下料方法

E.加强物资定额管理和仓储管理

题型:单项选择题

美国是世界上通用航空最发达的国家,通用航空已经成为那里最重要和最具活力的产业之一。今天,全世界有32万架通用航空飞机在飞,其中23万架在美国。

题型:单项选择题

下列关于感受器适应的叙述,错误的是

A.适应并非疲劳
B.快适应感受器对刺激的变化十分灵敏
C.慢适应感受器适用于传递快速变化的信息
D.刺激未变但传入冲动减少或消失

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