GRE考试

【单选题】It can be inferred from the passage that the author believes which of the following concerning the top-down method of nanotechnology
A、The top-down method tends to be accurate but highly inefficient, resulting in a process that takes a great deal of time and energy.
B、The top-down method, unlike the bottom-up method, tends to disobey the rules of many chemical interactions.
C、The top-down method requires a greater level of technological involvement than does the bottom-up metho
D、
D、The top-down method shows the limits of nanotechnology methods that rely too heavily on parallel processes.
E、The top-down method is fairly useless when applied to the problem of creating a single molecule.
网考网参考答案：A
网考网解析：
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