第17题: [单项选择]Less developed countries _______. A. spend little on research B. realize that progress depends on basic research C. encourage their career scientists to experiment D. devote less than 7% of their scientific budget to basic research 参考答案:D 答案解析:[解析] 推理判断题。第二段第二句“For practical reasons,the sums spent on applied research in any courttry...and the