A-A+
Which of the following is NOT the difficulty w
问题详情
Which of the following is NOT the difficulty we face about nanotech research？
A．How to prolong the 10 to 20 years" time.
B．How to eliminate the public"s prejudice.
C．How to solve the problem of big and small.
D．How to get enough manpower and money.此题为多项选择题。请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：A
解析：原文第2段提到：需要跨过一些困难的局面。文中列举了第一个：无法在经济上大规模的进行生产；第2个：如何跨接纳米领域和肉眼可见领域；第3个：由科学幻想小说引起的恐惧很可能会威胁到纳米技术。选项A“怎样将纳米技术的寿命延长10到20年”是对原文中the nanotech future may be 10 to 20 years off的误解。
