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【简答题】
Many years ago, when I was fresh out of school and working in Denver, I was driving to my parents’ home in Missouri for Christmas. I stopped at a gas station about 50 miles from Oklahoma City, where I was planning to stop and visit a friend. While I was standing in line at the cash register I said hello to an older couple who were also paying for gas. I took off, but had gone only a few miles when black smoke poured from the back of my car. I stopped and wondered what I should do. A car pulled up behind me. It was the couple I had spoken to at the gas station. They said they would take me to my friend’s. We chatted on the way into the city, and when I got out of the car, the husband gave me his business card. I wrote him and his wife a thank-you note for helping me. Soon afterward, I received a Christmas present from them. Their note that came with it said that helping me had made their holiday meaningful. Years later, I drove to a meeting in a nearby town in the morning. In late afternoon I returned to my car and found that I’d left the lights on all day, and the battery was dead. Then I noticed that the Friendly Ford dealership --- a shop selling cars --- was right next door. I walked over and found two salesmen in the show room. “Just how friendly is Friendly Ford?” I asked and explained my trouble. They quickly drove a pickup truck to my car and started it. They would accept no payment, so when I got home, I wrote them a note to say thanks. I received a letter back from one of the salesmen. No one had ever taken the time to write him and say thank you, and it meant a lot, he said. “Thank you”--- two powerful words. They’re easy to say and mean so much. 小题1:The author planned to stop at Oklahoma City ________. A.to drop in on a friend B.to see his parents C.to pay at the cash register D.to make a plan with his friend 小题2:The words “took off” underlined in Paragraph 2 means “_________”. A.moved off B.turned off C.put up D.set up 小题3:What happened when the author found smoke coming out of his car? A.He had it pulled back to the gas station. B.The couple sent him a business card C.The couple offered to help him. D.He called his friend for help. 小题4:By telling his own experiences, the author tries to show _______. A.how to write a thank-you letter B.how to deal with car problem C.the kind-heartedness of older people D.the importance of expressing thanks.
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A.
线性系统
B.
离散系统
C.
连续系统
D.
非线性控制系统
【单选题】According to a widely accepted theory, the universe began ____ a “Big Bang” that threw matter in all directions.
A.
with
B.
from
C.
in
D.
by
【单选题】发绀不是由于
A.
肺淤血
B.
肺水肿
C.
体循环淤血
D.
硫化血红蛋白>5g/L
E.
还原血红蛋白>50g/L
【单选题】What is the 'big bang' theory of cetacean predation? ______.
A.
Sixty-eight species of odontocetes use sound to locate their victims
B.
Toothed whales use sound as weapons
C.
Whales and humans have vestigial structures
D.
Whale teeth, once sharp, have become somewhat short and uneven
【多选题】植物细胞培养容器中的气体成分主要指( )。
A.
氧气
B.
乙烯
C.
氢气
D.
二氧化碳
【单选题】发绀是由于血液中去氧血红蛋白超过
A.
3g/dl
B.
5g/dl
C.
8g/dl
D.
10g/dl
E.
15g/dl
【单选题】发绀是由于
A.
毛细血管扩张充血
B.
红细胞量增多
C.
红细胞量减少
D.
血液中还原血红蛋白增多
E.
毛细血管血流加速
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A.
正确
B.
错误
【判断题】连续系统以微分方程方程来描述,离散系统用差分方程方程描述。
A.
正确
B.
错误
【单选题】Like the theory of evolution, the big-bang model of the universe's formation has undergone modification and ______, but it has______ all serious challenges.
A.
alteration...confirmed
B.
refinement...resisted
C.
transformation...ignored
D.
evaluation...acknowledged
E.
refutation...misdirected
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