皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【简答题】
Jack Andraka from Maryland won the grand prize at the 2012 Intel International Science and Engineering Fair. It is the largest high school science competition in the world. The Maryland teenager is the youngest winner of the $75,000 prize. He was chosen from among 1,500 students in 70 countries.Jack Andraka invented a test for pancreatic cancer (胰腺癌). He started to learn it after losing a close family friend to the disease. “I went on the Internet and I found that 85%of all pancreatic cancers are found late, when someone has less than 2% chance of survival(生存), ” he says, “and I was thinking,’ That’s not right. We should be able to do something.’” He found that early discovery is important to increasing the chances of surviving the disease. The Maryland teenager asked to work in a laboratory at Johns Hopkins University in Baltimore and was allowed. There he developed a simple paper test, which can recognize the disease in a single drop of blood. His test has proved correct 90% of the time. It also is 100 times more sensitive(敏感的)than other tests. “It costs 3 cents per test, and then it takes only 5 minutes to run,” he said. Jack’s success wouldn’t have been possible without Anirban Maitra, a professor at Johns Hopkins. He was the only person among the 200 researchers Jack wrote to who showed interest in his project. “I was very surprised that this was a 15-year-old who was writing this. I wanted to meet this clever young man and see what he wanted to talk about and so I called him over for an interview(会面). ” Jack worked in Professor Maitra’s laboratory, completing his project in 7 months. The government has given the Maryland teenager patent rights(专利权)to the pancreatic cancer test. He is now talking with companies about developing the test into a simple product. Whatever happens, the professor believes Jack Andraka’s name is one we will be hearing again over the next 10 to 20 years. 小题1: What made Jack Andraka research pancreatic cancer? A.A high school task. B.A professor’s encouragement. C.Losing a friend. D.Doubts about the present test. 小题2: Jack Andraka’s research on pancreatic cancer __________. A.proved to be very successful B.was 100 times cheaper than other tests C.gave patients a 90% chance of survival D.was finished at the high school of Maryland 小题3: We can infer(推断)from the text that Jack Andraka __________. A.left a deep impression on Professor Maitra B.was thought highly of by companies C.got support from others easily D.wasn’t afraid of failure 小题4: The underlined sentence in the last paragraph suggested Jack Andraka will __________. A.become rich B.make contributions(贡献)continually C.get a good job D.make products to treat cancer 小题5: What’s the best title for the text? A.Intel International Science and Engineering Fair B.Jack Andraka’s Fights Against Cancer C.Research on Pancreatic Cancer D.Teenager Cancer Researcher
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【单选题】机器人的重复定位精度是指()执行器为重复到达同一目标位置而实际到达位置之间的接近程度。
A.
机器人关节
B.
机器人传感器
C.
机器人末端
D.
机器人电机
【单选题】光的照射使材料的电阻率下降的现象称为
A.
光电导
B.
光伏效应
C.
电解效应
D.
压电性
【单选题】设年名义利率r=10%,以季度为周期计息,则年有效利率ieff为( )。
A.
10.25%.
B.
10.46%.
C.
10.51%.
D.
10.38%.
【单选题】年名义利率为10%时,按季计息,则计息期有效利率和年有效利率分别为( )。
A.
5%、10.25%
B.
2.5%、10.38%
C.
0.833%、10.46%
D.
0.52%、10.51%
【单选题】下列哪项不属于心理健康评估的范畴
A.
焦虑的评估
B.
抑郁的评估
C.
认知状态的评估
D.
生活事件评估
E.
社会功能的评估
【单选题】年名义利率为10%时,按季计息,则计息期有效利率和年有效利率分别为( )。
A.
0.833%、10.46%
B.
0.52%、10.51%
C.
2.5%、10.38%
D.
5%、10.25%
【单选题】( )是指机器人末端执行器的实际位置和目标位置之间的偏差,由机械误差、控制算法与系统分辨率等部分组成。
A.
定位精度
B.
作业范围
C.
重复定位精度
D.
承载能力
【单选题】现设年名义利率r=10%,则计息期为季的年有效利率为( )。
A.
10%
B.
10.25%
C.
10.38%
D.
10.40%
【判断题】年名义利率为10%,则以季度为计息周期的季度利率为5%
A.
正确
B.
错误
【单选题】若计息周期季利率为5%,则年名义利率为( )。
A.
5%
B.
10%
C.
15%
D.
20%
相关题目:
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题