选词填空答案：
第一篇：高等数学在美国的教育方法引起了美国教育界的争论
46. what does the author say about ordinary Americans?
答案：B- They think math is a complex subject.
47. What is the general complaint about America's math education according to
Hacker?
答案：A- America is not doing as well as China
48. What does Andrew Hackers Numeracy 101 aim to do?
答案: B-enable students to make practical use of basic math
49. What does Maria Drouikova suggest math teachers do in class?
答案: A- Make complex concepts easy to understand.
50. What does Pamela Harris think should be the goal of math education?
答案: C-TO broaden Americans perspectives on math.
第二篇：机器人在护理老人方面有很大的贡献
51. What does the author say about Japan?
答案: B --it takes the lead in providing robotic care
52. What do we learn about the robot Terapio
答案：C-it does not have much direct contact with patients
53. What are telepresence robots designed to do?
答案: D-Facilitate communication between patients and doctors or family members
54. What is one special feature of the robot Actroid F?
答案：A-it interacts with patients just like a human companion
55. What can we infer from the last paragraph?
答案：C- Robots will not make nurses redundant.