从网站上看：
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Typical Wait Time (Calendar Days*) for a Nonimmigrant Visa Interview Appointment
Visitors Visas: 30 Days
Student/Exchange Visitors Visas *** (Excludes: A, G, K, and V): 14 Days
All Other Nonimmigrant Visas: 10 Days
Typical Wait Time (Workdays**) for a Nonimmigrant Visa To Be Processed****: 3 Days
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是不是如果我明天8/3号打电话，可以预约8/13-14号去签证？
谢谢！！