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未作答问卷; 未作答选题 | |||
不回答,无响应 | |||
不回答; 无响应 | |||
无反应 |
non -response : 25 phrases in 12 subjects |
Advertising | 1 |
Agriculture | 1 |
Aviation | 1 |
Earth sciences | 2 |
Ecology | 1 |
Electric machinery | 1 |
Oil / petroleum | 1 |
Otorhinolaryngology | 1 |
Space | 1 |
Statistics | 3 |
Technology | 11 |
Wind Energy | 1 |