After those scientists come, there's a new______ in our town for recycling plastic bottles.
A. schedule
B. scheme
C. scout
D. safeguard
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According to the author, how is the approach of physicists to solving scientific problems
A. Practical for scientific purposes.
B. Detrimental to scientific progress.
C. Unimportant in most situations.
D. Expedient, but of little long-term value.
运用建设投资的( )的重要条件是：要有合理的生产能力指数。
A. 生产能力指数法
B. 比例估算法
C. 系数估算法
D. 投资估算指标法
温经散寒法不常用于哪项疾病
A. 月经后期
B. 痛经
C. 月经先期
D. 闭经
E. 不孕症E．末次月经来潮第一天算起
Every camera we sell comes with a two-year______ , so you can buy any one you like at ease.
A. guarantee
B. sincerity
C. confirmation
D. assessment
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