我人在美国，I-601A已获批准，属于I-130, F2B，正在走consular processing。3月14日收到NVC以下来信。
*GUZ2016xxxxxx*
14-MAR-18
Dear Sir/Madam,
The National Visa Center (NVC) received all the requested documentation for this immigrant visa case. The applicant is now in the queue awaiting an interview appointment overseas, where a consular officer will adjudicate the applicant's visa application.
NVC schedules appointments one month in advance. The U.S. Embassy tells us what dates they are holding interviews, and NVC fills these appointments as they become documentarily qualified. Most appointments are set within three months of NVC's receipt of all requested documentation. However, before applicants in a numerically limited (preference) visa category can receive an appointment, their priority date must also be current. This can delay receipt of an appointment. You can track your priority date using the Visa Bulletin on travel.state.gov.
When an appointment is available, we will notify the applicant, petitioner and attorney (if applicable). The applicant can prepare now by reading about the embassy's interview requirements online at nvc.state.gov/interview.
Thank you for your patience.
我的问题是：
1. 多久会得到广领具体面谈时间？我也调查过，有的说30天到60天，有的说60-90天。而Visajourney上很多回复说一个礼拜以内，天！答案差别太大了。虽然我知道通知迟早会拿到，但是我要提前安排行程，安顿家里。希望知道个大概时间表。
2. I-601A豁免后回国面谈，签证官一般容易纠缠哪些问题？
谢谢！