这几年，主打低价便宜的量贩零食店在老家开得很密。小区周边、十字路口、商圈外沿，几十米就能见到一家，它们的门面大多颜色鲜亮，货品称重为主，价格牌也都写得很大。这些店刚开业往往会热闹一时，但并不会持续太久。
SpaceX has not responded to emailed requests from BBC News for comment. The researchers also sent their findings to the company but did not receive a response.
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9. What is the difference between a cold email and a spam email?
6.3 inches (FHD+)
Full training can take a long time, so although some resident doctors may have only recently finished medical school, others could have more than a decade of practical experience and be responsible for most aspects of care.