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单选题
It can be inferred from the passage that _____
A
“mental cosmetics” is already a reality.
B
a new generation of mind-enhancing drugs may be a near future.
C
Ritalin and Modafinil have no mind-enhancing properties.
D
cognitive enhancers have been developed perfectly.
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解析：
推理判断题。本文简单介绍了这种新一代药物的功用和优点，但很多问题还仅仅是设想，这种药物还没有被正式研发出来，不过科学家对此抱有极大的信心，此外，文章的第二段也说到“Powerful stimulants that improve memory, intellectual agility or other aspects of mental performance will almost certainly be developed over the next 20 years.”即这种新药会在20年内研发出来，所以正确答案为B。
推理判断题。本文简单介绍了这种新一代药物的功用和优点，但很多问题还仅仅是设想，这种药物还没有被正式研发出来，不过科学家对此抱有极大的信心，此外，文章的第二段也说到“Powerful stimulants that improve memory, intellectual agility or other aspects of mental performance will almost certainly be developed over the next 20 years.”即这种新药会在20年内研发出来，所以正确答案为B。
更多 “单选题It can be inferred from the passage that _____A “mental cosmetics” is already a reality.B a new generation of mind-enhancing drugs may be a near future.C Ritalin and Modafinil have no mind-enhancing properties.D cognitive enhancers have been developed perfectly.” 相关考题
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