题目信息
Since 1978 when the copyright law was changed, books that are less than fifty years old must not be photocopied without the publisher's permission. Thus, any book that has been photocopied since 1978 without the publisher's permission must be at least fifty years old.
The reasoning above exhibits a flaw similar to one in which of the following?
The reasoning above exhibits a flaw similar to one in which of the following?
A:Any member of the solar system must be either a planet or a moon, so if an asteroid is neither a planet nor a moon, it must not be a member of the solar system.
B:Anyone who rides a city bus must buy a bus pass, and since Demetrios has a bus pass, he must be riding on a city bus.
C:A driver who turns right must signal, so any driver who did not signal must not have turned right.
D:Anyone who legally crosses a national boundary must have a passport; thus anyone who does not have a passport cannot legally cross a national boundary.
E:Any wage earner residing in the state must pay state taxes, so since Blodwen pays state taxes, she must be resident in the state.
参考答案及共享解析
共享解析来源为网络权威资源、GMAT高分考生等； 如有疑问，欢迎在评论区提问与讨论
本题耗时：
已选答案：
正确答案：
C:A driver who turns right must signal, so any driver who did not signal must not have turned right.
答案C
题目类型：相似题。
题目大意：自1978年修改版权法以来，未经出版者的许可，不得影印少于50年的书籍。 因此，自1978年以来未经出版商许可复印的任何书籍都必须至少有50年的历史。
题目逻辑：有法规，不代表人人会遵守法规，如果1978年后没有不守法者，上句才正确。
A.逻辑严密，无逻辑错误，排除。
B.有逻辑错误，但并非是否遵守规则，排除。
C.正确。
D.逻辑严密，无逻辑错误，排除。
E.有逻辑错误，但并非是否遵守规则，排除。
题目类型：相似题。
题目大意：自1978年修改版权法以来，未经出版者的许可，不得影印少于50年的书籍。 因此，自1978年以来未经出版商许可复印的任何书籍都必须至少有50年的历史。
题目逻辑：有法规，不代表人人会遵守法规，如果1978年后没有不守法者，上句才正确。
A.逻辑严密，无逻辑错误，排除。
B.有逻辑错误，但并非是否遵守规则，排除。
C.正确。
D.逻辑严密，无逻辑错误，排除。
E.有逻辑错误，但并非是否遵守规则，排除。
加入收藏
在线答疑
题目来源
