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Few people ever took notice of Mr. Jimmy Tan whenever he entered a room. He was a shy, quiet and simple man who preferred to keep to himself in public. On the other hand, Mr. Thomas Kim, a fellow scientist, was a man everyone would notice on the streets. He wore bright outfits with huge flower prints, spoke with a booming voice, and his laughter could be heard from all corners of a room. In addition to the differences in their characters, Mr. Kim and Mr. Tan were also great rivals at work in the Institute of Future Science. On Christmas Eve, everyone left work early to celebrate the special occasion, except for Mr. Tan and Mr. Kim. They were in their laboratory analyzing the results of their latest experiments. Mr. Tan realized that something special was taking place in his experiment —the bacteria he had cultured were growing extremely quickly under high pressure and at a very low temperature. After noting down the findings in his notebook, he left the room to prepare for another round of tests. Shortly after, Mr. Kim entered. “Hey Jimmy,” Mr. Kim called out, “do you have an extra copy of the laboratory booking form?” There was no reply, so Mr. Kim looked through Mr. Tan’s things. He soon found Mr. Tan's notebook and was horrified to see that Mr. Tan had managed to make one of the most important discoveries in modern science. He then looked into the deep-freeze cupboard where a dish containing the bacteria was kept. He put them into his pocket and returned to his own laboratory. Mr. Tan came back an hour later to find his notebook and the dish missing. He knew that Mr. Kim had taken them and went to Mr. Kim's laboratory to find out. When he opened the door, he found Mr. Kim lying on the floor motionless. His face was pale and his skin had turned black. The deadly bacteria had been handled improperly. He shook his head and left. 小题1:From the first paragraph we know Mr. Kim was a quite person. A.famous B.hardworking C.wealthy D.outgoing 小题2:The underlined word 'rivals' in the first paragraph is closest in meaning to . A.enemies B.colleagues C.competitors D.friends 小题3:What does the underlined word “them” refer to in the 4th paragraph? A.the most important discoveries B.the notebook and the dish C.the cupboard and the bacteria D.the dish and the bacteria 小题4:Which of the following is true according to the passage? A.Mr. Kim was afraid Mr. Tan might succeed ahead of him. B.Mr. Tan's bacteria grew very fast in a warm container. C.Mr. Tan worked much harder than Mr. Kim. D.Mr. Kim was so tired that he fell down into sleep. 小题5:What happened to Mr. Kim in the end? A.He died on Christmas Eve. B.He was arrested by the police. C.He shared the success with Mr. Tan. D.He succeeded ahead of Mr. Tan.
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【判断题】定额成本是根据产品的现行消耗定额和材料计划单位成本或计划小时费用计算的。(    )
A.
正确
B.
错误
【多选题】计算周转轮系对应的转化轮系的传动比公式iABH=(ωA-ωH)/(ωB-ωH)中,____。
A.
构件A、B、H的几何回转轴线必须平行
B.
ω A 、 ω B、 ω H 均为代数值
C.
ω A 、ω B、 ω H 自身的正负号代表转向
D.
ω A 、ω B、 ω H 均为矢量
【单选题】计算周转轮系对应的转化轮系的传动比公式iABH=(ωA-ωH)/(ωB-ωH)中,要求____。
A.
A 、 B 、 H 的回转轴线平行
B.
A 、 B 两齿轮回转轴线可以不平行
C.
轮系中所有齿轮回转轴线必须平行
D.
A 、 B 两齿轮回转轴线平行
【多选题】骨骼肌收缩时,肌节的变化是
A.
A带不变
B.
A带变小
C.
I带变小
D.
H带不变
E.
H带变小
【单选题】在讨论周转轮系的传动比计算公式时,提出了转化轮系的概念。与周转轮系对应的转化轮系是( )。
A.
行星轮系
B.
定轴轮系
C.
混合轮系
D.
差动轮系
【单选题】在讨论周转轮系的传动比计算公式时,提出了转化轮系的概念。与周转轮系对应的转化轮系是____。
A.
定轴轮系
B.
差动轮系
C.
混合轮系
D.
行星轮系
【多选题】抹灰类饰面可采用()作为基本材料
A.
石灰砂浆
B.
水泥砂浆
C.
混合砂浆
D.
水刷石
【判断题】救生衣必须存放于干燥、远离高温和油污处。()
A.
正确
B.
错误
【多选题】倒角的时候如果要同时倒多个相同的倒角,可以选择以下哪些方法
A.
不可行
B.
框选中所有要倒角的直线
C.
可在倒角时选择“多个”
D.
如果是多段线,可在倒角时选择“多段线”
【判断题】救生衣必须存放于干燥、远离高温和油污处。
A.
正确
B.
错误
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