9月13日，外交部发言人毛宁主持例行记者会。    (ECNS) -- Extreme weather contributed to a month-on-month decline in online registrations of second-hand home sales in Guangzhou, Guangdong Province, in July, according to the local real estate agents association.    Central urban districts recorded moderate growth, while transactions generally declined in outlying areas.    The city registered 8,658 second-hand home transactions in July, covering a total floor area of 858,500 square meters. The number of transactions fell 0.94% month on month and 7.1% year on year, while the total area declined 3.42% and 7.23%, respectively.        Small and medium-sized homes accounted for a larger share of total transactions than in the previous month.    The share of homes measuring less than 60 square meters rose by 0.62 percentage points, while that of homes between 60 and 90 square meters increased by 0.29 percentage points.    Several of the city’s 10 most active property submarkets recorded month-on-month growth.    Transactions in the Fangcun Avenue area surged 47.93%, while the Sino-Singapore Guangzhou Knowledge City area posted an increase of 31.88%.    The association said that much of the housing demand accumulated in the first half of the year had already been released, while a wait-and-see mood was likely to prevail in Guangzhou’s second-hand housing market in August.    (By Helen Mo, intern Liu Shuangjing)                    。有记者提问：9月9日，《禁止生物武器公约》缔约国协商会议在日内瓦闭幕，中方能否介绍会议的情况？对此次会议有何评论？毛宁介绍，应俄罗斯的要求，《禁止生物武器公约》缔约国于9月5日至9月9日在日内瓦举行了协商会议。这次会议的主题是审议美国的遵约问题，广大缔约国非常重视这次会议，也广泛参与了这次会议。我们注意到，俄罗斯在会上展示了一系列的证据材料，指控美国的生物军事活动违反《禁止生物武器公约》，美国对此做了答辩。会上，包括中方在内的其他缔约国提出了不少需要美方澄清的问题，并且主张尽快重启《公约》核查议定书的谈判，以便从根本上确保《公约》得到有效执行。遗憾的是，美方没有对上述指控和质疑作出充分、有效的回应，未能解决缔约国的关切。下一步，缔约国将进一步研究处理美国遵约相关的问题。毛宁指出，美国是世界上生物军事活动最多的国家，也是唯一拒绝谈判《禁止生物武器公约》核查议定书的国家，国际社会对此早有关切。中方支持按照《公约》的规定，以客观、公正的态度，对美国遵约相关问题继续开展审议。我们也再次敦促美国对其生物军事活动作出全面澄清，停止独家阻挠重启核查议定书谈判，给国际社会一个负责任的交代。（总台央视记者 吴汶倩 杨毅）